Sunday, November 02, 2014
Book review: Antifragile: Things that gain from Disorder, by Nassim Nicholas Taleb
Sunday, March 16, 2008
The Black Swan, by Nassim Nicholas Taleb
Nassim Taleb was a financial derivatives trader who made enough money in his 20's (born 1960) and checked out of the rat race to become a "philosopher." His book is a snarky but intellectual appraisal of the pseudo-knowledge employed in our financial markets and elsewhere. He argues that economics is a soft non-science that tries to legitimize itself with "statistical analysis" of risk using techniques such as the bell curve, standard deviation and other charlatanry, which only gives the field a veneer of validity.
He discusses the Black Swan, i.e. the unlikely event that always rears its head and has profound consequences. The unknowable unknown, the risk which cannot be assessed, is ignored by the managers of risk-- to the detriment of everyone. The book was written a few years ago and the lesson is prescient. Whether its 9-11, the Asian currency crisis of 1998, the Great Depression, the Influenza Epidemic, or the current mortgage solvency meltdown, the markets are always vulnerable to something unseen.
All of the successes in the world, whether it’s Bill Gates’ career or the discovery of penicillin, are reliant on a combination of skill and luck, but luck is always under-emphasized in the human brain. When fortunes are made, the human psyche is quick to take the credit, but when disaster strikes we blame some external phenomenon. Taleb does not call for paralysis in the face of such bias, only truth in assessing the risks and recognition of the lack of control we have. The world is a complicated, interconnected place and one hiccup-- whether man-made or natural-- can spell disaster. It's always the entity that was not anticipated that brings down the house.
Humans are vulnerable to several fallacies and biases that can have deleterious effects on our judgment. The narrative fallacy is the appeal of the story: we look for causation for events and this is often misleading. “The market crashed because x occurred this morning.” David Hume, the great Scottish philosopher outlined the problems with causation a couple centuries ago and we need to re-consider his premise now more than ever.
Another problem Taleb outlines is the Ludic fallacy, the idea that all of life resembles game theory with predictable structure and controllable randomness. In life, however, rules often do not apply and such structure, the idea of which is appealing, is absent.
Taleb discusses various biases to which humans attach themselves. The strongest is confirmation bias that is characterized by seeking “proofs” that our preconceived notions are true. We ignore or avoid information that contradicts our worldview. Coupled with narrative fallacy, confirmation bias can be deadly. While Taleb comes at these topics from a financial point of view, the philosophical constructs are applicable to any field, and I would argue that great understanding is at hand for most scientific fields.
The difference between Platonism--i.e., top-down theorizing ala the Ivory Tower-- versus Empiricism--i.e., experiential real-world knowledge-- is a particularly important part of Taleb’s thesis. We yearn to find science where this is none, whether it’s modern financial portfolio theory or alternative medicine; humans look for the comfort of proof that our preconceptions are valid. Often it’s not there.
The desire to create a narrative to explain history or current events leads to an overvaluation of these usually inaccurate facts. As a result, we overvalue the intellectual elite who proposes the narratives. The debacle of Long Term Capital Management, a group of Nobel Prize winning economists and “experts” who went bankrupt in the 1990’s, is an especially poignant example. The history of medicine is also rife with such false theoretical thinking, with examples of grand theories of bodily humours or gases which needed to be expelled or infused, often with horrific results. Only with the practice of empiric study— reasonable conclusions drawn from our collective experience-- can the truth be found if ever. But we must also know the limits of our empiric knowledge; some things just are not known.
The Black Swan is as important a book as any as we seek bedrock explanations for fast moving events in our globalized existence. Taleb’s points are interesting, his book excellent and my short discussion hardly does it justice.
Thursday, March 11, 2010
Bleeding to Death...

Excerpt from Malcolm Gladwell's 2002 essay on Nicholas Taleb (pictured at right), Blowing Up, and reprinted as part of his latest book What the Dog Saw:
"We cannot blow up, we can only bleed to death," Taleb says, and bleeding to death, absorbing the pain of steady losses, is precisely what human beings are hardwired to avoid. "Say you've got a guy who is long on Russian bonds," Savery says. "He's making money every day. One day, lightning strikes and he loses five times what he made. Still, on three hundred and sixty-four out of three hundred and sixty-five days he was very happily making money. It's much harder to be the other guy, the guy losing money three hundred and sixty-four days out of three hundred and sixty-five, because you start questioning yourself. Am I ever going to make it back? Am I really right? What if it takes ten years? Will I even be sane ten years from now?" What the normal trader gets from his daily winnings is feedback, the pleasing illusion of progress. At Empirica, there is no feedback. "It's like you're playing the piano for ten years and you still can't play chopsticks," Spitznagel say, "and the only thing you have to keep you going is the belief that one day you'll wake up and play like Rachmaninoff." Was it easy knowing that Niederhoffer -- who represented everything they thought was wrong -- was out there getting rich while they were bleeding away? Of course it wasn't . If you watched Taleb closely that day, you could see the little ways in which the steady drip of losses takes a toll. He glanced a bit too much at the Bloomberg. He leaned forward a bit too often to see the daily loss count. He succumbs to an array of superstitious tics. If the going is good, he parks in the same space every day; he turned against Mahler because he associates Mahler with the last year's long dry spell. "Nassim says all the time that he needs me there, and I believe him," Spitznagel says. He is there to remind Taleb that there is a point to waiting, to help Taleb resist the very human impulse to abandon everything and stanch the pain of losing. "Mark is my cop," Taleb says. So is Pallop: he is there to remind Taleb that Empirica has the intellectual edge.
Tuesday, February 16, 2010
Class Warfare Closer Every Day [Updated below]

The United States Congress and Senate will see remarkable turnover in this fall's elections. Unprecedented "retirements" and primary challenges will ensure that the Congress we have next year will look quite different than today's.
Thursday, September 02, 2010
Links to Drink By... Our Modern Culture Edition
Sunday, April 05, 2009
Economics and the Avoidance of Armageddon
I read the references that you sent. Black is correct in maligning the marriage between Washington and Wall Street, but he acts like this is something new. In fact, going all the way back to Alexander Hamilton, we've had corruption at the highest levels of finance and govt. And I would say it's even worse in other types of govt models like Communism (Russia is the obvious example, but also we see it in Cuba) and monarchies (QE1 had a stranglehold on the financial system of the world; feudal lords were also an obvious example).I'm not saying it's okay, just saying that money and power will always get married. Greenwald implies that a new President can change the status quo in 90 days and that is unrealistic. While I agree with the sentiment, I can appreciate the practicality of keeping the system intact for now. There is also a marriage between the educational system and the financial world with the brightest students pursuing careers on Wall Street because that is where the money is. Sure, there are exceptions like Krugman and Romer and Geithner, who are lifetime academics, but they are rare exceptions. Romer is chair of Obama's CEA after all. Geithner is a career govt official.For the president to ignore Sunmers' and Rubins' input would be lunacy. We also assume that Obama is blindly following the advice of one side of the debate which is not necessarily true.Black made the analogy of a plane wreck and bemoaned having the pilots who crashed the plane lead the investigation. To use his analogy, I would say we are still cleaning up the debris on the runway and seeing if there are any survivors. Any investigation I have seen so far, such as with the Congressional hearings, has devolved into inane political posturing by the representatives. I cannot figure out who is the dumber, Maxine Waters or Michelle Bachmann. Even Barney Frank, who is hailed as the smartest guy on Finance in Washington, seems to have a very superficial understanding of the crisis for someone who has been involved with the issue for 2 decades.To wax philosophical for a moment, money is the property of the federal reserve-- they print it and control how much is in circulation. We can accept it as a payment for the labor and goods we provide, but no law says you are required to do this. The resolution of this crisis may require the devaluation of dollars at some point, but that point has not come yet, at least not in relationship to other currencies and commodities-- which is after all the only practical way of valuing a currency. The federal reserve is a quasi private organization of banks and we can only loosely control its management. Each of us has to make a determination of our value to society and we can choose to accept or reject the offer made. (Ask John Galt.)Black and Greenwald and Moyers have a lot of bile for the status quo and the way it is being handled, and I can appreciate their skepticism and frustration. But, they offer no alternative solutions. In September, we approached the edge of the abyss and we successfully backed away. Not everyone appreciates how close we were to financial Armageddon. This is not to say that we should not or could not have seen it coming. Economists like Taleb and Roubini and Ritholtz and many others have been railing about it for years (and reading Ritholtz since 2006 has likely saved me tens of thousands of dollars), although each one of them have intimated in various venues that they had no idea it would unwind so quickly. Even a semi-coherent non-professional could figure out that lifestyles were out of hand: entire subdivisions of $500,000 homes were built on speculation, total household debt is 100% of GDP, our trade imbalance is increasing exponentially, federal budget deficits are rising due to wasteful unnecessary war. And so on. It has taken us 25 years to reach this point.I would also comment that as bad as this situation still is, look at the bright side. It is being managed without bloodshed, revolution or massive dislocations in peoples' lifestyles (so far). Just look to 40 years ago when a similar (I would even say less severe) crisis occurred in China. What was the solution? The Cultural Revolution orchestrated by the Party slaughtered 35 million people. Or look to the Wiemar Republic in 1933. After several years of crushing Depression, they elected Hitler as Chancellor whose solution was to exterminate a third of the population and start a world war where 50 million people died. I hope we have learned from the past enough to avoid such extreme outcomes, but there is no guarantee.Today we have safety nets: Medicare, Social Security, unemployment insurance, etc. The crisis will not inundate everyone all at once. That is why we pay our taxes for 20 years and whine that it's not worth it, then all of a sudden, it is worth it. That's the wisdom of FDR and Ike and like minded progressives.Ritholtz points out that before AIG developed CDS', we had reinsurance. I would add that we also had portfolio insurance, S&L shenanigans, internet bubbles, tulip bubbles, etc. The financial industry has a long history of creating "products" that are designed to bilk us out of our hard-earned labor and the history likely goes back to the first Cro-magnon man selling ink to write on cave walls in France. As dour as Ritholtz has been for the last several years, I think it's only fair to point out that he has recently called for people to get back into the market and invest in stocks. I tend to agree with Ritholtz that someone at AIG intended to commit fraud; he's the lawyer and I'll defer to his professinal opinion.So, bad economic conditions can have dire consequences and calling for a complete takedown of the status quo would have a plethora of unintended consequences, mostly bad. The solution must be practical. My opinion is that Obama is handling the greatest economic crisis in 80 years with unbelievable aplomb. I have no idea if it will have a better or worse outcome than we had in the 1930's or 1917 or the 1870's, and neither does anyone else. I do know that ignoring the problem, castigating individual banks, calling for massive large bankruptcies, allowing unemployment to reach 25%, being vindictive and wasting time putting the pilots on trial while the passengers are burning to death... all should be options that off the table.Black and Moyers seem to think that we should dismantle the reserve banking system by 9:00 am next Tuesday. Is that really in the best interest of the working man? There will be plenty of time for Waters and Bachmann to make political hay, but let's clean up the runway first.


