The dawn of the Acquarius Age

September 21, 2009

Some futurists such as Ray Kurzweil have hypothesized that we will someday soon pass through a singularity–that is, a time period of rapid technological change beyond which we cannot envision the future of society. Most visions of this singularity focus on the creation of machines intelligent enough to devise machines even more intelligent than themselves, and so forth recursively, thus launching a positive feedback loop of intelligence amplification. It’s an intriguing thought. (One of the first things I wanted to do when I got to MIT as an undergraduate was to build a robot scientist that could make discoveries faster and better than anyone else.) Even the CTO of Intel, Justin Rattner, has publicly speculated recently that we’re well on our way to this singularity, and conferences like the Singularity Summit (at which I’ll be speaking in October) are exploring how such transformations might take place.
Credit: Technology Review

As a brain engineer, however, I think that focusing solely on intelligence augmentation as the driver of the future is leaving out a critical part of the analysis–namely, the changes in motivation that might arise as intelligence amplifies. Call it the need for “machine leadership skills” or “machine philosophy”–without it, such a feedback loop might quickly sputter out.

We all know that intelligence, as commonly defined, isn’t enough to impact the world all by itself. The ability to pursue a goal doggedly against obstacles, ignoring the grimness of reality (sometimes even to the point of delusion–i.e., against intelligence), is also important. Most science-fiction stories prefer their artificial intelligences to be extremely motivated to do things–for example, enslaving or wiping out humans, if The Matrix and Terminator II have anything to say on the topic. But I find just as plausible the robot Marvin, the superintelligent machine from Douglas Adams’ The Hitchhiker’s Guide to the Galaxy, who used his enormous intelligence chiefly to sit around and complain, in the absence of any big goal.

Indeed, a really advanced intelligence, improperly motivated, might realize the impermanence of all things, calculate that the sun will burn out in a few billion years, and decide to play video games for the remainder of its existence, concluding that inventing an even smarter machine is pointless. (A corollary of this thinking might explain why we haven’t found extraterrestrial life yet: intelligences on the cusp of achieving interstellar travel might be prone to thinking that with the galaxies boiling away in just 1019 years, it might be better just to stay home and watch TV.) Thus, if one is trying to build an intelligent machine capable of devising more intelligent machines, it is important to find a way to build in not only motivation, but motivation amplification–the continued desire to build in self-sustaining motivation, as intelligence amplifies. If such motivation is to be possessed by future generations of intelligence–meta-motivation, as it were–then it’s important to discover these principles now.

There’s a second issue. An intelligent being may be able to envision many more possibilities than a less intelligent one, but that may not always lead to more effective action, especially if some possibilities distract the intelligence from the original goals (e.g., the goal of building a more intelligent intelligence). The inherent uncertainty of the universe may also overwhelm, or render irrelevant, the decision-making process of this intelligence. Indeed, for a very high-dimensional space of possibilities (with the axes representing different parameters of the action to be taken), it might be very hard to evaluate which path is the best. The mind can make plans in parallel, but actions are ultimately unitary, and given finite accessible resources, effective actions will often be sparse.

The last two paragraphs apply not only to AI and ET, but also describe features of the human mind that affect decision making in many of us at times–lack of motivation and drive, and paralysis of decision making in the face of too many possible choices. But it gets worse: we know that a motivation can be hijacked by options that simulate the satisfaction that the motivation is aimed toward. Substance addictions plague tens of millions of people in the United States alone, and addictions to more subtle things, including certain kinds of information (such as e-mail), are prominent too. And few arts are more challenging than passing on motivation to the next generation, for the pursuit of a big idea. Intelligences that invent more and more interesting and absorbing technologies, that can better grab and hold their attention, while reducing impact on the world, might enter the opposite of a singularity.

What is the opposite of a singularity? The singularity depends on a mathematical recursion: invent a superintelligence, and then it will invent an even more powerful superintelligence. But as any mathematics student knows, there are other outcomes of an iterated process, such as a fixed point. A fixed point is a point that, when a function is applied, gives you the same point again. Applying such a function to points near the fixed point will often send them toward the fixed point.

A “societal fixed point” might therefore be defined as a state that self-reinforces, remaining in the status quo–which could in principle be peaceful and self-sustaining, but could also be extremely boring–say, involving lots of people plugged into the Internet watching videos forever. Thus, we as humans might want, sometime soon, to start laying out design rules for technologies so that they will motivate us to some high goal or end–or at least away from dead-end societal fixed points. This process will involve thinking about how technology could help confront an old question of philosophy–namely, “What should I do, given all these possible paths?” Perhaps it is time for an empirical answer to this question, derived from the properties of our brains and the universe we live in.


In the beginning was the Word, and the Word was with God…

September 12, 2009

We love Stephen Hawking.

We love that computerized voice of his. We’re inspired by his story and just can’t get enough of hearing him break down the universe in a way even a simpleton like me can understand. That’s why we were so pleased to discover a transcript of a lecture he gave across the Bay at UC – Berkeley offering a summary of where we are in relation to understanding the origin of the Universe.

The expansion of the universe was discovered by Edwin Hubble in the 1920s and was one of the most important intellectual discoveries of the 20th century, or of any century. It transformed the debate about whether the universe had a beginning. Hubble’s discovery that galaxies are moving apart now, suggested they must have been closer together in the past. If their speed had been constant, they would all have been on top of one another about 15 billion years ago. Was this the beginning of the universe?

Steady State Theory Disproved

Many scientists were still unhappy with the universe having a beginning, because it seemed to imply that physics broke down. One would have to invoke an outside agency, which for convenience, one can call God, to determine how the universe began. They therefore advanced theories in which the universe was expanding at the present time, but didn’t have a beginning. One was the Steady State theory, proposed by Bondi, Gold, and Hoyle in 1948.

In the Steady State theory, as galaxies moved apart, the idea was that new galaxies would form from matter that was supposed to be continually being created throughout space. The universe would have existed for ever, and would have looked the same at all times. This last property had the great virtue, from a positivist point of view, of being a definite prediction, that could be tested by observation. The Cambridge radio astronomy group, under Martin Ryle, did a survey of weak radio sources in the early 1960s. These were distributed fairly uniformly across the sky, indicating that most of the sources, lay outside our galaxy. The weaker sources would be further away, on average.

The Steady State theory predicted the shape of the graph of the number of sources, against source Strength. But the observations showed more faint sources than predicted, indicating that the density sources was higher in the past. This was contrary to the basic assumption of the Steady State theory, that everything was constant in time. For this, and other reasons, the Steady State theory was abandoned.

Hawking and Penrose Disprove Russian Expansion/Contraction Theories

Another attempt to avoid the universe having a beginning, was the suggestion that there was a previous contracting phase, but because of rotation and local irregularities, the matter would not all fall to the same point. Instead, different parts of the matter would miss each other, and the universe would expand again, with the density remaining finite. Two Russians, Lifshitz and Khalatnikov, actually claimed to have proved that a general contraction without exact symmetry, would always lead to a bounce, with the density remaining finite. This result was very convenient for Marxist Leninist dialectical materialism, because it avoided awkward questions about the creation of the universe. It therefore became an article of faith for Soviet scientists.

When Lifshitz and Khalatnikov published their claim, I was a 21–year-old research student, looking for something to complete my PhD thesis. I didn’t believe their so-called proof, and set out with Roger Penrose to develop new mathematical techniques to study the question. We showed that the universe couldn’t bounce. If Einstein’s General Theory of Relativity is correct, there will be a singularity, a point of infinite density and space-time curvature, where time has a beginning.

Observational evidence to confirm the idea that the universe had a very dense beginning, came in October 1965, a few months after my first singularity result, with the discovery of a faint background of microwaves throughout space. These microwaves are the same as those in your microwave oven, but very much less powerful. They would heat your pizza only to minus 271 point 3 degrees centigrade, not much good for defrosting the pizza, let alone cooking it. You can actually observe these microwaves yourself. Set your television to an empty channel. A few percent of the snow you see on the screen, will be caused by this background of microwaves. The only reasonable interpretation of the background, is that it is radiation left over from an early very hot and dense state. As the universe expanded, the radiation would have cooled until it is just the faint remnant we observe today.

Einstein’s Theory of Relativity No Help

Although the singularity theorems of Penrose and myself, predicted that the universe had a beginning, they didn’t say how it had begun. The equations of General Relativity would break down at the singularity. Thus Einstein’s theory can not predict how the universe will begin, but only how it will evolve once it has begun. There are two attitudes one can take to the results of Penrose and myself. One is to that God chose how the universe began for reasons we could not understand. This was the view of Pope John Paul. At a conference on cosmology in the Vatican, the Pope told the delegates that it was OK to study the universe after it began. but they should not inquire into the beginning itself, because that was the moment of creation, and the work of God. I was glad he didn’t realize I had presented a paper at the conference, suggesting how the universe began. I didn’t fancy the thought of being handed over to the Inquisition, like Galileo.

The other interpretation of our results, which is favored by most scientists, is that it indicates that the General Theory of Relativity, breaks down in the very strong gravitational fields in the early universe. It has to be replaced by a more complete theory.. One would expect this anyway, because General Relativity does not take account of the small scale structure of matter, which is governed by quantum theory. This does not matter normally, because the scale of the universe, is enormous compared to the microscopic scales of quantum theory. But when the universe is the Planck size, a billion trillion trillionth of a centimeter, the two scales are the same, and quantum theory has to be taken into account.

In order to understand the Origin of the universe, we need to combine the General Theory of Relativity, with quantum theory. The best way of doing so, seems to be to use Feynman’s idea of a sum over histories. Richard Feynman was a colorful character, who played the bongo drums in a strip joint in Pasadena, and was a brilliant physicist at the California Institute of Technology. He proposed that a system got from a state A, to a state B, by every possible path or history.

Each path or history, has a certain amplitude or intensity, and the probability of the system going from A- to B, is given by adding up the amplitudes for each path. There will be a history in which the moon is made of blue cheese, but the amplitude is low, which is bad news for mice.

An Issue of Time

The probability for a state of the universe at the present time, is given by adding up the amplitudes for all the histories that end with that state. But how did the histories start. This is the Origin question in another guise. Does it require a Creator to decree how the universe began. Or is the initial state of the universe, determined by a law of science.

In fact, this question would arise even if the histories of the universe went back to the infinite past. But it is more immediate if the universe began only 15 billion years ago. The problem of what happens at the beginning of time, is a bit like the question of what happened at the edge of the world, when people thought the world was flat. Is the world a flat plate, with the sea pouring over the edge. I have tested this experimentally. I have been round the world, and I have not fallen off.

As we all know, the problem of what happens at the edge of the world, was solved when people realized that the world was not a flat plate, but a curved surface. Time however, seemed to be different. It appeared to be separate from space, and to be like a model railway track. If it had a beginning, there would have to be someone to set the trains going.

Einstein’s General Theory of Relativity, unified time and space as space-time, but time was still different from space, and was like a corridor, which either had a beginning and end, or went on for ever. However, when one combines General Relativity with Quantum Theory, Jim Hartle and I, realized that time can behave like another direction in space under extreme conditions. This means one can get rid of the problem of time having a beginning, in a similar way in which we got rid of the edge of the world. Suppose the beginning of the universe, was like the south pole of the Earth , with degrees of latitude, playing the role of time. The universe would start as a point at the South Pole. As one moves north, the circles of constant latitude, representing the size of the universe, would expand. To ask what happened before the beginning of the universe, would become a meaningless question, because there is nothing south of the South Pole.

Time, as measured in degrees of latitude, would have a beginning at the South Pole, but the South Pole is much like any other point, at least so I have been told. I have been to Antarctica, but not to the South Pole.

The same laws of Nature hold at the South Pole, as in other places. This would remove the age-old objection to the universe having a beginning, that it would be a place where the normal laws broke down. The beginning of the universe, would be governed by the laws of science.

Inflation

The picture Jim Hartle and I developed, of the spontaneous quantum creation of the universe, would be a bit like the formation of bubbles of steam in boiling water. The idea is that the most probable histories of the universe, would be like the surfaces of the bubbles. Many small bubbles would appear, and then disappear again. These would correspond to mini universes that would expand, but would collapse again while still of microscopic size. They are possible alternative universes, but they are not of much interest since they do not last long enough to develop galaxies and stars, let alone intelligent life. A few of the little bubbles, however, with grow to a certain size at which they are safe from recollapse. They will continue to expand at an ever increasing rate, and will form the bubbles we see. They will correspond to universes that would start off expanding at an ever increasing rate. This is called inflation, like the way prices go up every year.

The world record for inflation, was in Germany after the First World War. Prices rose by a factor of ten million in a period of 18 months. But that was nothing compared to inflation in the early universe. The universe expanded by a factor of million trillion trillion in a tiny fraction of a second. Unlike inflation in prices, inflation in the early universe was a very good thing. It produced a very large, and uniform universe, just as we observe. However, it would not be completely uniform. In the sum over histories, histories that are very slightly irregular, will have almost as high probabilities as the completely uniform and regular history.. The theory therefore predicts that the early universe is likely to be slightly non-uniform. These irregularities would produce small variations in the intensity of the microwave background from different directions. The microwave background has been observed by the Map satellite, and was found to have exactly the kind of variations predicted. So we know we are on the right lines.

The irregularities in the early universe, will mean that some regions will have slightly higher density than others. The gravitational attraction of the extra density, will slow the expansion of the region, and can eventually cause the region to collapse to form galaxies and stars. So look well at the map of the microwave sky. It is the blue print for all the structure in the universe. We are the product of quantum fluctuations in the very early universe. God really does play dice.

We have made tremendous progress in cosmology in the last hundred years. The General Theory of Relativity, and the discovery of the expansion of the universe, shattered the old picture of an ever existing, and ever lasting universe. Instead, general relativity predicted that the universe, and time itself, would begin in the big bang. It also predicted that time would come to an end in black holes. The discovery of the cosmic microwave background, and observations of black holes, support these conclusions. This is a profound change in our picture of the universe, and of reality itself.

Although the General Theory of Relativity, predicted that the universe must have come from a period of high curvature in the past, it could not predict how the universe would emerge from the big bang. Thus general relativity on its own, can not answer the central question in cosmology, Why is the universe, the way it is. However, if general relativity is combined with quantum theory, it may be possible to predict how the universe would start. It would initially expand at an ever increasing rate. During this so called inflationary period, the marriage of the two theories predicted that small fluctuations would develop, and lead to the formation of galaxies, stars, and all the other structure in the universe. This is confirmed by observations of small non uniformities in the cosmic microwave background, with exactly the predicted properties. So it seems we are on our way to understanding the origin of the universe, though much more work will be needed. A new window on the very early universe, will be opened when we can detect gravitational waves by accurately measuring the distances between space craft. Gravitational waves propagate freely to us from earliest times, unimpeded by any intervening material. By contrast, light is scattered many times by free electrons. The scattering goes on until the electrons freeze out, after 300,000 years.

Despite having had some great successes, not everything is solved. We do not yet have a good theoretical understanding, of the observations that the expansion of the universe, is accelerating again, after a long period of slowing down. Without such an understanding, we can not be sure of the future of the universe. Will it continue to expand forever? Is inflation a law of Nature? Or will the universe eventually collapse again? New observational results, and theoretical advances, are coming in rapidly. Cosmology is a very exciting and active subject. We are getting close to answering the age old questions. Why are we here? Where did we come from?


Cracking the mystery of life at Harvard

August 28, 2009

How did life on Earth begin? An giant step toward solving this puzzle was taken in the 1980’s with the Nobel Prize–winning discovery by Tom Cech and Sidney Altman that RNA, the sister molecule of DNA, can catalyze certain chemical reactions inside cells, a job previously thought to be the exclusive domain of proteins. Until their discovery, RNA was thought to have just one function: storing the genetic information cells need to build proteins.

This new revelation about RNA’s dual role suggested to some scientists, including Harvard’s Jack Szostak, that RNA likely existed long before DNA or proteins because it might be able to catalyze its own reproduction. Their discovery made it easier to think about how life began, Szostak says. “They inspired me to try to think of ways to make RNAs in the lab that could catalyze their own replication.”

Szostak and his team is working to recreate a hypothetical model of this process in the laboratory. By building simple cell-like structures in a test tube, they are attempting to establish a plausible path that led primitive cells to emerge from simple chemicals. Ultimately, Szostak hopes to answer fundamental questions about evolution’s earliest steps.

Building on earlier work by other scientists, Szostak and colleagues began experimenting with a clay mixture common on early Earth called montmorillonite, which was found to catalyze the chemical reactions needed to make RNA.

So, did life originally spring from clay as some creation myths assert? Not necessarily, but it does provide a possible mechanism for explaining how life initially arose from nonliving molecules. Szostak’s team at the Howard Hughes Medical Institute and Massachusetts General Hospital showed that the presence of clay aids naturally occurring reactions that result in the formation of fatty sacks called vesicles, similar to what scientists expect the first living cells to have looked like. Further, the clay helps RNA form. The RNA can stick to the clay and move with it into the vesicles. This provides a method for RNA’s critical genetic information to move inside a primitive cell.

“It’s exciting because we know that a particular clay mineral helps with the assembly of RNA,” Szostak said. “There certainly would have been lots of environments on early Earth with clay minerals. It’s something that forms relatively easily as rocks weather.”

The researchers also found that the clay expedited the process by which fatty acids form vesicles that could serve as cell membranes. When RNA and fatty acids were mixed with the montmorillonite, the clay seemed to help transport the RNA inside the vesicles, forming a cell-like structure. Szostak and his team surmised that a similar process could possibly have led to the creation of the first cell.


MIT’s doubts about global warming by humans?

August 15, 2009

It is the age old debate about the data being a signal or noise?
A team of MIT scientists recorded a nearly simultaneous world-wide increase in methane levels -the first increase in ten years. What baffles the team is that this data contradicts theories stating humans are the primary source of increase in greenhouse gas. It takes about one full year for gases generated in the highly industrial northern hemisphere to cycle through and reach the southern hemisphere. Since all worldwide levels rose simultaneously throughout the same year, however, it is probable that this may be part of a natural cycle – and not the direct result of man’s contributions.

MIT’s Matthew Rigby and Ronald Prinn, the TEPCO Professor of Atmospheric Chemistry in MIT’s Department of Earth, Atmospheric and Planetary Science, state that this imbalance has resulted in several million metric tons of additional methane in the atmosphere. Methane is produced by wetlands, rice paddies, cattle, and the gas and coal industries, and is destroyed by reaction with the hydroxyl free radical (OH), often referred to as the atmosphere’s “cleanser.”

Methane accounts for roughly one-fifth of greenhouse gases in the atmosphere, though its effect is 25x greater than that of carbon dioxide. Its impact on global warming comes from the reflection of the sun’s light back to the Earth. Methane is broken down in the atmosphere by the free radical hydroxyl (OH), a naturally occuring process. This atmospheric cleanser has been shown to adjust itself up and down periodically, and is believed to account for the lack of increases in methane levels in Earth’s atmosphere over the past ten years despite notable simultaneous increases by man.

Prinn has said, “The next step will be to study [these changes] using a very high-resolution atmospheric circulation model and additional measurements from other networks. The key thing is to better determine the relative roles of increased methane emission versus [an increase] in the rate of removal. Apparently we have a mix of the two, but we want to know how much of each [is responsible for the overall increase].”

The primary concern now is that while the collected data in 2007 reflects a simultaneous world-wide increase in emissions, how relevant are any of the data findings at this late date?

One thing does seem very clear, however; science is only beginning to get a focus on the big picture of global warming. Findings like these tell us it’s too early to know for sure if man’s impact is affecting things at “alarming rates.” We may simply be going through another natural cycle of warmer and colder times – one that’s been observed through a scientific analysis of the Earth to be naturally occurring for hundreds of thousands of years.


Will Kindle replace books? Gurus are predicting yes

August 2, 2009

The Kindle 2 is a “fundamentally better experience than inked paper. Jeff Bezos—Amazon’s founder and C.E.O.—has built a machine that marks a cultural revolution. Printed books, the most important artifacts of human civilization, are going to join newspapers and magazines on the road to obsolescence.”

Jacob Weisberg, the editor-in-chief of the Slate Group/Newsweek

The Kindle is the logical evolution of a 500-year-old analog technology that terrifies the $24 billion book-publishing industry already faint from Amazon’s growing dominance.

The newspaper industry, says Russ Wilcox, an entrepreneur from Harvard Business School and founder of E Ink in a brilliant article in this week’s New Yorker by Nicholson Baker
was a hundred-and-eighty-billion-dollar-a-year business, and book publishing was an additional eighty billion. Half of that was papermaking, ink mixing, printing, transport, inventory, and the warehousing of physical goods. “So you can save a hundred and thirty billion dollars a year if you move the information digitally,” Wilcox told Baker. “There’s a lot of hidden forces at work that are all combining to make this sort of a big tidal wave that’s coming.” The economic pressures are immense.”

On June 12th, Gizmodo announced that the Kindle DX, just started shipping on Amazon to extend it’s e-book reach to include textbooks and periodicals, which it will test-market to college students.The DX was sold out before the end of the week. “Either people really love that DX, the Gizmodo team quipped, “or the Earth only produces enough resources to sustain manufacturing a few units at a time.”

The Gizmodo report underscores the obvious fact that the Kindle has gripped the public imagination like it’s, well, like it’s a new iPod or iPhone release, The Kindle, now in it’s second iteration, is the first book-industry hit of its kind, selling hundreds of thousands of units since its introduction in November 2007. It’s the first with built-in wireless 3G connectivity, making it possible to download whole volumes in less than a minute — more than 1,500 books can fit on a single machine — with titles often less than half the price of a traditional hardcover.

Amazon founder, Jeff Bezos’ rvision is “to have every book ever printed, in any language, all available in under 60 seconds.” Wall Street analysts estimate that Amazon sold a half-million Kindles last year and projects its total e-book revenue, which includes sales of books and devices, to reach $1.2 billion by 2010. There are currently 275,000 titles are available in the Kindle format, including nearly all 112 books on The New York Times best-seller list.

It’s obvious that Jeff Bezos is trying to do to book publishers what Steve Jobs of Apple did to the music industry.

With its first-mover advantage, Apple rapidly built iPod and iTunes Store,creating a new platform standard that wrested control of the digital-music distribution system. Should Amazon succeed, they could marginalize book publishers, phasing them out completely, treating them as the latest victims of creative destruction orphaned by a new technology.

In the new world of e-books, publishers could team with authors and multimedia producers to create e-books that go far beyond linear text, incorporating a blend of text, video, audio interviews, 3-D maps — an entire ecosystem of content built on top of a technology that was perfected in the 16th century.

Image credit: The New Yorker/newyorker.com

Source:
http://www.newyorker.com/reporting/2009/08/03/090803fa_fact_baker?currentPage=1
http://gizmodo.com/5288615/kindle-dx-sells-out-in-two-days Image credit: Gizmodo
http://www.fastcompany.com/magazine/137/the-evolution-of-amazon.html


The Economist on Texas/California

July 10, 2009

http://www.economist.com/opinion/displayStory.cfm?story_id=13990207&source=hptextfeature

AMERICA’S recent history has been a relentless tilt to the West—of people, ideas, commerce and even political power. California and Texas, the nation’s two biggest states, are the twin poles of the West, but very different ones. For most of the 20th century the home of Silicon Valley and Hollywood has been the brainier, sexier, trendier of the two: its suburbs and freeways, its fads and foibles, its marvellous miscegenation have spread around the world. Texas, once a part of the Confederacy, has trailed behind: its cliché has been a conservative Christian in cowboy boots, much like a certain recent president. But twins can change places. Is that happening now?

It is easy to find evidence that California is in a funk (see article). At the start of this month the once golden state started paying creditors, including those owed tax refunds, business suppliers and students expecting grants, in IOUs. California’s governor, Arnold Schwarzenegger, also said that the gap between projected outgoings and income for the current fiscal year has leapt to a horrible $26 billion. With no sign of a new budget to close this chasm, one credit agency has already downgraded California’s debt. As budgets are cut, universities will let in fewer students, prisoners will be released early and schemes to protect the vulnerable will be rolled back.

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They paved paradise and put up the parking taxes

Plenty of American states have budget crises; but California’s illustrate two more structural worries about the state. Back in its golden age in the 1950s and 1960s, it offered middle-class people, not just techy high-fliers, a shot at the American dream—complete with superb schools and universities, and an enviable physical infrastructure. These days California’s unemployment rate is running at 11.5%, two points ahead of the national average. In such Californian cities as Fresno, Merced and El Centro, jobless rates are higher than in Detroit. Its roads and schools are crumbling. Every year, over 100,000 more Americans leave the state than enter it.

The second worry has to do with dysfunctional government. No state has quite so many overlapping systems of accountability or such a gerrymandered legislature. Ballot initiatives, the crack cocaine of democracy, have left only around a quarter of its budget within the power of its representative politicians. (One reason budget cuts are inevitable is that voters rejected tax increases in a package of ballot measures in May.) Not that Californian government comes cheap: it has the second-highest top level of state income tax in America (after Hawaii, of all places). Indeed, high taxes, coupled with intrusive regulation of business and greenery taken to silly extremes, have gradually strangled what was once America’s most dynamic state economy. Chief Executive magazine, to take just one example, has ranked California the very worst state to do business in for each of the past four years.

By contrast, Texas was the best state in that poll. It has coped well with the recession, with an unemployment rate two points below the national average and one of the lowest rates of housing repossession. In part this is because Texan banks, hard hit in the last property bust, did not overexpand this time. But as our special report this week explains, Texas also clearly offers a different model, based on small government. It has no state capital-gains or income tax, and a business-friendly and immigrant-tolerant attitude. It is home to more Fortune 500 companies than any other state—64 compared with California’s 51 and New York’s 56. And as happens to fashionable places, some erstwhile weaknesses now seem strengths (flat, ugly countryside makes it easier for Dallas-Fort Worth to expand than mountain-and-sea-locked LA), while old conservative stereotypes are being questioned: two leading contenders to be Houston’s next mayor are a black man and a white lesbian. Texas also gets on better with Mexico than California does.

American conservatives have seized on this reversal of fortune: Arthur Laffer, a Reaganite economist, hails the Texan model over the Gipper’s now hopelessly leftish home. Despite all this, it still seems too early to cede America’s future to the Lone Star state. To begin with, that lean Texan model has its own problems. It has not invested enough in education, and many experts rightly worry about a “lost generation” of mostly Hispanic Texans with insufficient skills for the demands of the knowledge economy. Now immigration is likely to reconvert Texas from Republican red to Democratic blue; Latinos may justly demand a bigger, more “Californian” state to educate them and provide them with decent health care. But Texas could then end up with the same over-empowered public-sector unions who have helped wreck government in California.

Second, it has never paid to bet against a state with as many inventive people as California. Even if Hollywood is in the dumps (see article), it still boasts an unequalled array of sunrise industries and the most agile venture-capital industry on the planet; there is no prospect of the likes of Google decamping from Mountain View for Austin, though many start-ups have. The state also has an awesome ability to reinvent itself—as it did when its defence industry collapsed at the end of the cold war. Perhaps the rejection of tax increases will “starve the beast” and promote structural reform. A referendum on a new primaries system could end its polarised politics. Mr Schwarzenegger’s lazy governorship could come to be seen not as the great missed opportunity, but as the spur for reform.


Hawking’s theory of evolution

July 6, 2009

Although It has taken homo sapiens several million years to evolve from the apes, the useful information in our DNA, has probably changed by only a few million bits. So the rate of biological evolution in humans, Stephen Hawking points out in his Life in the Universe lecture, is about a bit a year.

“By contrast,” Hawking says, “there are about 50,000 new books published in the English language each year, containing of the order of a hundred billion bits of information. Of course, the great majority of this information is garbage, and no use to any form of life. But, even so, the rate at which useful information can be added is millions, if not billions, higher than with DNA.”

This means Hawking says that we have entered a new phase of evolution. “At first, evolution proceeded by natural selection, from random mutations. This Darwinian phase, lasted about three and a half billion years, and produced us, beings who developed language, to exchange information.”

But what distinguishes us from our cave man ancestors is the knowledge that we have accumulated over the last ten thousand years, and particularly, Hawking points out, over the last three hundred.

“I think it is legitimate to take a broader view, and include externally transmitted information, as well as DNA, in the evolution of the human race,” Hawking said.

In the last ten thousand years the human species has been in what Hawking calls, “an external transmission phase,” where the internal record of information, handed down to succeeding generations in DNA, has not changed significantly. “But the external record, in books, and other long lasting forms of storage,” Hawking says, “has grown enormously. Some people would use the term, evolution, only for the internally transmitted genetic material, and would object to it being applied to information handed down externally. But I think that is too narrow a view. We are more than just our genes.”

The time scale for evolution, in the external transmission period, has collapsed to about 50 years, or less.

Stephen-hawking Meanwhile, Hawking observes, our human brains “with which we process this information have evolved only on the Darwinian time scale, of hundreds of thousands of years. This is beginning to cause problems. In the 18th century, there was said to be a man who had read every book written. But nowadays, if you read one book a day, it would take you about 15,000 years to read through the books in a national Library. By which time, many more books would have been written.”

But we are now entering a new phase, of what Hawking calls “self designed evolution,” in which we will be able to change and improve our DNA. “At first,” he continues “these changes will be confined to the repair of genetic defects, like cystic fibrosis, and muscular dystrophy. These are controlled by single genes, and so are fairly easy to identify, and correct. Other qualities, such as intelligence, are probably controlled by a large number of genes. It will be much more difficult to find them, and work out the relations between them. Nevertheless, I am sure that during the next century, people will discover how to modify both intelligence, and instincts like aggression.”

If the human race manages to redesign itself, to reduce or eliminate the risk of self-destruction, we will probably reach out to the stars and colonize other planets. But this will be done, Hawking believes, with intelligent machines based on mechanical and electronic components, rather than macromolecules, which could eventually replace DNA based life, just as DNA may have replaced an earlier form of life.


Reboot your brain- from JHU Med School

June 3, 2009

Contrary to popular belief, recent studies have found that there are probably ways to regenerate brain matter.

Animal studies conducted at the National Institute on Aging Gerontology Research Center and the Johns Hopkins University School of Medicine, for example, have shown that both calorie restriction and intermittent fasting along with vitamin and mineral intake, increase resistance to disease, extend lifespan, and stimulate production of neurons from stem cells.

In addition, fasting has been shown to enhance synaptic elasticity, possibly increasing the ability for successful re-wiring following brain injury. These benefits appear to result from a cellular stress response, similar in concept to the greater muscular regeneration that results from the stress of regular exercise.

Additional research suggests that increasing time intervals between meals might be a better choice than chronic calorie restriction, because the resultant decline in sex hormones may adversely affect both sexual and brain performance. Sex steroid hormones testosterone and estrogen are positively impacted by an abundant food supply. In other words, you might get smarter that way, but it might adversely affect your fun in the bedroom, among other drawbacks.

But if your not keen on starving yourself, there are other options. Another recent finding, stemming from the Burnham Institute for Medical Research and Iwate University in Japan, reports that the herb rosemary contains an ingredient that fights off free radical damage in the brain. The active ingredient, known as carnosic acid (CA), can protect the brain from stroke and neurodegeneration such as Alzheimer’s and from the effects of normal aging.

Although researchers are patenting more potent forms of isolated compounds in this herb, unlike most new drugs, simply using the rosemary in its natural state may be the most safe and clinically tolerated because it is known to get into the brain and has been consumed by people for over a thousand years. The herb was used in European folk medicine to help the nervous system.

Another brain booster that Bruce N. Ames, Ph.D., a professor of biochemistry and molecular biology at the University of California, Berkeley, swears by his daily 800 mg of alpha-lipoic acid and 2,000 mg of acetyl-L-carnitine, chemicals which boost the energy output of mitochondria that power our cells. Mitochondrial decay is a major factor in aging and diseases such as Alzheimer’s and diabetes. Elderly rats on these supplements had more energy and ran mazes better.

Omega-3s fatty acids DHA and EPA found in walnuts and fatty fish (such as salmon, sardines, and lake trout) are thought to help ward off Alzheimer’s disease. (In addition, they likely help prevent depression and have been shown to help prevent sudden death from heart attack).

Turmeric, typically found in curry, contains curcumin, a chemical with potent antioxidant and anti-inflammatory properties. In India, it is even used as a salve to help heal wounds. East Asians also eat it, which might explain their lower rates (compared to the United States) of Parkinson’s disease and Alzheimer’s disease, in addition to various cancers. If curry isn’t part of your favorite cuisines, you might try a daily curcumin supplement of 500 to 1,000 mg.

Physical exercise may also have beneficial effects on neuron regeneration by stimulating regeneration of brain and muscle cells via activation of stress proteins and the production of growth factors. But again, additional research suggests that not all exercise is equal. Interestingly, some researchers found that exercise considered drudgery was not beneficial in neuronal regeneration, but physical activity that was engaged in purely for fun, even if equal time was spent and equal calories were burned, resulted in neuronal regeneration.

Exercise can also help reduce stress, but any stress-reducing activity, such as meditation and lifestyle changes, can help the brain. There is some evidence that chronic stress shrinks the parts of the brain involved in learning, memory, and mood. (It also delays wound healing, promotes atherosclerosis, and increases blood pressure.)

It should go without saying that short-term cognitive and physical performance is not boosted by fasting, due to metabolic changes including decrease in body temperature, decreased heart rate and blood pressure and decreased glucose and insulin levels, so you’re better off not planning a marathon or a demanding work session during a fasting period.

As part of a healthy lifestyle the prescription of moderating food intake, exercising, and eating anti-oxidant rich foods is what we’ve long known will boost longevity, but it’s good to know that we can bring our brains along with us as we make it into those golden years without being the 1 in 7 who suffers from dementia. Keep your fingers crossed and eat some rosemary chicken


Whither US manufacturing?

May 28, 2009

Products at Wal-Mart and Target may come from overseas, but the US is still the world’s No. 1 manufacturer. For many American companies, there’s still no place like home.
Chrysler bankrupt, General Motors (GM, news, msgs) on the brink, layoffs almost too deep to count. No wonder the recession has brought out a chorus of hand-wringers lamenting that America “doesn’t make anything anymore” and that all the good jobs have been outsourced.
Few myths could be further from the truth. Despite headlines about low-wage workers in China and our factory jobs going to India — which has happened in a lot of industries — the U.S. is still far and away the biggest manufacturer in the world.
U.S. workers produce 21% of all factory goods made globally, or about $1.7 trillion worth per year. That’s significantly lower than the peak of 28% in 1985 but only slightly below the long-term average of 23% for 1970 through 2006.
China, the second-biggest global producer, doesn’t even come close. It makes just 13% of the world’s stuff, or $1 trillion worth. Japan is next with 11%. And Germany, the vaunted workshop of Europe, comes in fourth with a paltry 7.4%.
OK, so these numbers are from 2006, the latest data from the United Nations, which keeps track of these things. But China, the hottest contender for factory jobs, has been grabbing jobs from other Asian countries for the most part and not from the United States, says economist David Huether of the National Association of Manufacturers. So the U.S. lead over China in factory jobs may not have changed much since 2006.
Here’s other evidence of the strength of the U.S. manufacturing base:
• During the previous economic boom, manufacturing contributed more to U.S. growth than any other sector, Huether says.
• Though lots of factory workers have lost their jobs in the recession, U.S. manufacturing still employed 12.1 million people as of the end of April.
• Factory workers’ daily toil contributed to 11.5% of the United States’ product last year.
• Many U.S. factory workers are big earners, which lets them consume more, contributing more to growth. They made an average of $71,000 in 2007, or 20% more than the average of all other workers combined. States with the most factory jobs are California, Texas and New York.
To be sure, this recession hasn’t been easy on manufacturers or their workers. Hours have been cut and workers furloughed. Since December 2007, 1.6 million out of the 5.7 million job losses in the U.S. have been in manufacturing. But the big picture isn’t all bleak.
Not the small stuff
If the U.S. is still the world’s greatest producer, why do so many people have a different perception?
Let’s call it the Wal-Mart (WMT, news, msgs) effect. Most people do their “research” on the U.S. manufacturing base by turning over the tags on the stuff they buy. They naturally notice that most clothing and toys at retailers such as Wal-Mart come from abroad — because those are two of the industries where production has moved abroad, in a big way.
• Talk back: Do you try to ‘buy American’?
The catch here is that most of what’s made in the U.S. is purchased by companies, not consumers. So unless consumers also happen to work as buyers at companies, they miss the fact that machinery, chemicals, fabricated metals and other sophisticated products are still manufactured in the U.S.
So are lots of the pharmaceuticals, computers and electronics that we use. Big export categories ($1.3 trillion last year) are heavy-construction equipment, turbines, locomotives, nuclear reactors, aircraft and aerospace equipment.
Mind you, I’m not saying there aren’t problems in these industries. Companies have resorted to cutbacks to survive the recession. Many make a lot of stuff abroad to satisfy local demand around the globe, or use parts made abroad in production here.
But the 10 U.S.-based manufacturers we highlight in our slide show today are leaders in their fields, and they still have huge production facilities stateside. There are many more.
It’s all about the work force
Why do so many U.S. companies still make so much stuff on their home turf when cheap labor beckons abroad?
The rationale offered by General Electric (GE, news, msgs) and boat maker Brunswick (BC, news, msgs) — two companies on IndustryWeek’s top 500 U.S. manufacturers list — are typical.
They say the highly motivated and well-trained U.S. work force is well worth the “extra” labor cost.
“Frankly, what we make is not that easy to produce,” says Brunswick spokesman Dan Kubera. “A lot of science and art goes into it. So obviously we have to have workers who know what they are doing.”
Plus shipping long distances is not always that convenient. Large U.S. manufacturers such as Hershey (HSY, news, msgs), which sells most of its sweets in the U.S., prefer to produce close to their biggest consumers. This helps them keep shipping costs and energy use down, maintain freshness and fill orders quickly.
Here’s a third big advantage: Because of their skills and ability to learn how to use complex production equipment so often found in factories now, U.S. workers may not be as “expensive” as they seem. They remain by far the most productive in the world.


Bernanke’s Speech

May 25, 2009

I am very pleased to have the opportunity to address the graduates of the Boston College Law School today. I realized with some chagrin that this is the third year in a row that I have given a commencement address here in the First Federal Reserve District, which is headquartered at the Federal Reserve Bank of Boston. This part of the country certainly has a remarkable number of fine universities. I will have to make it up to the other 11 Districts somehow.

Along those lines, last spring I was nearby in Cambridge, speaking at Harvard University’s Class Day. The speaker at the main event, the Harvard graduation the next day, was J. K. Rowling, author of the Harry Potter books. Before my remarks, the student who introduced me took note of the fact that the senior class had chosen as their speakers Ben Bernanke and J. K. Rowling, or, as he put it, “two of the great masters of children’s fantasy fiction.” I will say that I am perfectly happy to be associated, even in such a tenuous way, with Ms. Rowling, who has done more for children’s literacy than any government program I know of.

I get a number of invitations to speak at commencements, which I find a bit puzzling. A practitioner, like me, of the dismal science of economics–and it is even more dismal than usual these days–is not usually the first choice for providing inspiration and uplift. I will do my best, though, and in that spirit I will take a more personal perspective than usual in my remarks today. The business reporters should go get coffee or something, because I am not going to say anything about the markets or monetary policy.

Instead, I’d like to offer a few thoughts today about the inherent unpredictability of our individual lives and how one might go about dealing with that reality.

As an economist and policymaker, I have plenty of experience in trying to foretell the future, because policy decisions inevitably involve projections of how alternative policy choices will influence the future course of the economy. The Federal Reserve, therefore, devotes substantial resources to economic forecasting. Likewise, individual investors and businesses have strong financial incentives to try to anticipate how the economy will evolve.

With so much at stake, you will not be surprised to know that, over the years, many very smart people have applied the most sophisticated statistical and modeling tools available to try to better divine the economic future. But the results, unfortunately, have more often than not been underwhelming. Like weather forecasters, economic forecasters must deal with a system that is extraordinarily complex, that is subject to random shocks, and about which our data and understanding will always be imperfect.

In some ways, predicting the economy is even more difficult than forecasting the weather, because an economy is not made up of molecules whose behavior is subject to the laws of physics, but rather of human beings who are themselves thinking about the future and whose behavior may be influenced by the forecasts that they or others make. To be sure, historical relationships and regularities can help economists, as well as weather forecasters, gain some insight into the future, but these must be used with considerable caution and healthy skepticism.

In planning our own individual lives, we all have a strong psychological need to believe that we can control, or at least anticipate, much of what will happen to us. But the social and physical environments in which we live, and indeed, we ourselves, are complex systems, if you will, subject to diverse and unforeseen influences. Scientists and mathematicians have discussed the so-called butterfly effect, which holds that, in a sufficiently complex system, a small cause–the flapping of a butterfly’s wings in Brazil–might conceivably have a disproportionately large effect–a typhoon in the Pacific.

All this is to put a scientific gloss on what you probably know from everyday life or from reading good literature: Life is much less predictable than we would wish. As John Lennon once said, “Life is what happens to you while you are busy making other plans.”

Our lack of control over what happens to us might be grounds for an attitude of resignation or fatalism, but I would urge you to take a very different lesson. You may have limited control over the challenges and opportunities you will face, or the good fortune and trials that you will experience. You have considerably more control, however, over how well prepared and open you are, personally and professionally, to make the most of the opportunities that life provides you.

Any time that you challenge yourself to undertake something worthwhile but difficult, a little out of your comfort zone–or any time that you put yourself in a position that challenges your preconceived sense of your own limits–you increase your capacity to make the most of the unexpected opportunities with which you will inevitably be presented. Or, to borrow another aphorism, this one from Louis Pasteur: “Chance favors the prepared mind.”

When I look back at my own life, at least from one perspective, I see a sequence of accidents and unforeseeable events. I grew up in a small town in South Carolina and went to the public schools there. My father and my uncle were the town pharmacists, and my mother, who had been a teacher, worked part-time in the store. I was a good student in high school and expected to go to college, but I didn’t see myself going very far from home, and I had little notion of what I wanted to do in the future.

Chance intervened, however, as it so often does. I had a slightly older friend named Ken Manning, whom I knew because his family shopped regularly at our drugstore. Ken’s story is quite interesting, and a bit improbable, in itself. An African American, raised in a small Southern town during the days of racial segregation, Ken nevertheless found his way to Harvard for both a B.A. and a Ph.D., and he is now a professor at MIT, not too far from here. Needless to say, he is an exceptional individual, in his character and determination as well as his remarkable intellectual gifts.

Anyway, for reasons that have never been entirely clear to me, Ken made it his personal mission to get me to come to Harvard also. I had never even considered such a possibility–where was Harvard, exactly? Up North, I thought–but Ken’s example and arguments were persuasive, and I was (finally) persuaded. Fortunately, I got in. It probably helped that Harvard was not at the time getting lots of applications from South Carolina.

We all have moments we will never forget. One of mine occurred when I entered Harvard Yard for the first time, a 17-year-old freshman. It was late on Saturday night, I had had a grueling trip, and as I entered the Yard, I put down my two suitcases with a thump. I looked around at the historic old brick buildings, covered with ivy. Parties were going on, students were calling to each other across the Yard, stereos were blasting out of dorm windows. I took in the scene, so foreign to my experience, and I said to myself, “What have I done?”

At some level, I really had no idea what I had done, or what the consequences would be. All I knew was that I had chosen to abandon the known and comfortable for the unknown and challenging. But for me, at least, the expansion of horizons was exactly what I needed at that time in my life. I suspect that, for many of you, matriculation at the Boston College law school represented something similar–a leap into the unknown and new, with consequences and opportunities that you could hardly have guessed in advance.

But, in some important ways, leaving the known and comfortable was exactly the point of the exercise. Each of you is a different person than you were three years ago, not only more knowledgeable in the law, but also possessing a greater understanding of who you are–your weaknesses and strengths, your goals and aspirations. You will be learning more about the fundamental question of who you really are for the rest of your life.

After I arrived at college, unpredictable factors continued to shape my future. In college I chose to major in economics as a compromise between math and English, and because a senior economics professor liked a paper I wrote and offered me a summer job. In graduate school at MIT, I became interested in monetary and financial history when a professor gave me several books to read on the subject. I found historical accounts of financial crises particularly fascinating. I determined that I would learn more about the causes of financial crises, their effects on economic performance, and methods of addressing them. Little did I realize then how relevant that subject would become one day. Later I met my wife Anna, to whom I have been married now for 31 years, on a blind date.

After finishing graduate school, I began a career as an economics professor and researcher. I pursued my interests from graduate school by delving deeply into the causes of the Great Depression of the 1930s, along with many other topics in macroeconomics, monetary policy, and finance. During my time as a professor, I tried to resist the powerful forces pushing scholars to greater and greater specialization and instead did my best to keep as broad a perspective as possible. I read outside my field. I did empirical research, studied history, wrote theoretical papers, and established connections, usually in a research or advisory role, with the Fed and other central banks.

In the spring of 2002, I was asked by the Administration whether I might be interested in being appointed to the Federal Reserve’s Board of Governors. I was not at all sure that I wanted to take the time from teaching and research. But this was soon after 9/11, and I felt keenly that I owed my country my service. Moreover, I told myself, the experience would be useful for my research when I returned to my post at Princeton. I decided to take a two-year leave to go to Washington. Well, once again, so much for foresight. I have now been in Washington nearly seven years, serving first as a Fed governor, then chairman of the President’s Council of Economic Advisers. In the fall of 2005, President Bush appointed me to be Chairman of the Fed, effective with the retirement of Alan Greenspan at the end of January 2006.

You will not be surprised to hear that events since January 2006 have not been precisely as I anticipated, either.

My colleague, Bank of England Governor Mervyn King, has said that the object of central banks should be to make monetary policy as boring as possible. Unfortunately, by that metric we have not been successful. The financial crisis that began in August 2007 is the most severe since the Great Depression, and it has been the principal cause of the global recession that began last fall. Battling that crisis and trying to mitigate its effect on the U.S. and global economies has dominated my waking hours now for some 21 months. My colleagues at the Fed and I have been called on to take many tough decisions, including adopting extraordinary and unprecedented policy measures to address the crisis.

I think you will agree that the chain of events that began with my decision to go far from home for college and has culminated–so far–with the role I am playing today in U.S. economic policymaking is so unlikely that we could have safely ruled it out of consideration. Nevertheless, of course, it happened. Although I never could have prepared in advance for the specific events of the past 21 months, I believe that my efforts throughout my life to expand my horizons and to keep a broad perspective–for example, to study and write about economic and financial history, as well as more conventional topics in macroeconomics and monetary economics–have helped me better meet the challenges that have come my way.

At the same time, because I appreciate the role of chance and contingency in human events, I try to be appropriately realistic about my own capabilities. I know there is much that I don’t know. I consequently try to be attentive to all points of view, to work collaboratively, and to involve as many smart people in policy decisions as possible.

Fortunately, my colleagues and the staff at the Federal Reserve are outstanding. And indeed, many of them have demonstrated their own breadth and flexibility, moving well beyond their previous training and experience to tackle a wide range of novel and daunting issues, usually with great success.

Law is like economics in that, although it has its own esoterica known only to initiates, it is at bottom a craft whose value lies primarily in its practical application. You cannot know today what problems or challenges you will face in the course of your professional lives. Thus, I hope that, even as you continue to acquire expertise in specific and sometimes narrow aspects of the law, you will continue to maintain a broad perspective and willingness, indeed an eagerness, to expand the range of your knowledge and experience.

I have spoken a bit about the economic and financial challenges that we face. How do these challenges bear on the prospects of the graduates of 2009? The economic situation is a trying one, as you know. We are in a recession, and the labor market is weak. Many of you may not have gotten the job you wanted; some may have had offers rescinded or the start of employment delayed. I do not minimize those constraints and disappointments in any way. Restoring economic prosperity and maximizing economic opportunity are the central focus of our efforts at the Fed.

Nevertheless, you are in some ways very lucky. You have been trained in a field, law, that is exceptionally broad in its compass. At the Federal Reserve, lawyers are involved in every aspect of our policies and operations–not just because they know the legal niceties, but because they possess analytical tools that bear on almost any problem.

In law school you have honed your skills in reasoning, reading, and writing. Many of you have work experience or bring backgrounds to bear ranging from history to political science to the humanities to science. There will always be a need for people with your abilities and talents.

So, my advice to you is to stay optimistic. Things usually have a way of working out. My second piece of advice is to be flexible, even adventurous as you begin your careers. As I have tried to illustrate today, you are much less able than you think to foresee how your life, both professional and personal, will play out.

The world changes too fast, and too many accidents and unpredictable events occur. It will pay, therefore, to be creative and open-minded as you search for and consider professional opportunities. Look most carefully at those options that will give you a chance to learn new things, explore new areas, and grow as a person. Think of every job as a potential investment in yourself. Will it prepare your mind for the opportunities that chance will provide?

You are lucky also to be living and studying in the United States. There is a lot of pessimistic talk now about the future of America’s economy and its role in the world. Such talk accompanies every period of economic weakness. The United States endured a decade-long Great Depression and returned to prosperity and global leadership.

When I graduated from college in 1975, and from graduate school in 1979, the economy was sputtering, gas prices and inflation were high, and pessimism–malaise, President Carter called it–was rampant. The U.S. economy subsequently entered more than two decades of growth and prosperity. The economy will recover–it has too many fundamental strengths to be kept down for too long–and the mood will brighten.

This is not to ignore real challenges. Our society is aging, implying higher health-care costs and fiscal burdens. We need to save more as a country, to reduce global imbalances in saving and investment, and to set the stage for continued growth. Our educational system is strong in some areas, including our university system, but does not serve everyone equally well, contributing to slower growth and greater income disparities. In the diverse capacities for which your training has prepared you, many of you will play a vital role in addressing these problems, both in the public and private spheres.

I conclude with congratulations to the graduates, your families, and friends. You have worked hard and accomplished much. You have a great deal to look forward to, as many interesting and gratifying opportunities await you. I hope that as you enter or re-enter the working world, you make sure to stay flexible and open-minded and to learn whenever you can. That’s the best way to deal with the unpredictabilities that are inherent in life. I wish you the best of luck, with the proviso that luck is what you make of it.

And perhaps you will advise next year’s class to invite J. K. Rowling.

No matter how critical you are of the way this Fed Chairman is handing the financial crisis, I think his address should be read by all.

Life is inherently unpredictable and we will all come across personal and professional challenges. At the age of 26, I was completing my Master’s thesis in economics, critically reviewing the literature on growth empirics and convergence. I took a trip down to New York City with a buddy of mine and started feeling a pain under both my feet.

The pain was so excruciating that I couldn’t walk or sleep and yet there were no visible signs of anything wrong with my feet. My buddy was very concerned so we took a flight out to head back to Montreal.

My father and brother are physicians. They told me to go do an MRI. My father took me to the emergency room and after an hour long MRI, I was diagnosed with Multiple Sclerosis as there were lesions in my brain which pointed to MS.

Needless to say, I was devastated. I thought my life was over, but I was wrong. With the support of my family and friends, I mustered the strength to regain my composure, finish my thesis (I even got an “A” on it), and slowly got on with living life.

Over the years, my bout with MS has not been easy. Like it or not, it is incredibly frustrating when you lose control over your body and are aware of it. I also faced very difficult periods dealing with challenges at work and in my personal life.

But no matter how hard life gets, I try to focus on what I can do today and worry a lot less about what I might not be able to do in the future. I simply do not care about what other people think of me. I am done worrying about what others think of me. Either they accept me for who I am or they don’t.

The other thing I can share with you is that there is a beauty is in this inherent unpredictability of life. We are all here for a finite time, which is a gift in and of itself. What we do with our lives and how we cope with great obstacles is what ultimately defines each and every one of us.

I know that many people lost their job and are feeling the angst of the recession, but try to lead a healthy life, keep your focus and remember what’s ultimately important is your health, your family and your friends. If you can, go volunteer some of your time to see what real misery exists out there.

I hope that the Boston College School of Law does invite J.K. Rowling to address their graduates next year. Her mom also suffered from Multiple Sclerosis and with all due respect to the Fed Chairman, I find Ms. Rowling’s life fascinating and the very epitome of the beauty of inherent unpredictability of life.

On that personal note, I am heading out to enjoy the beautiful weather in Montreal with my friends and will spend time with my family later today. I wish all of you in the U.S. a very nice long weekend.