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Meet Mark Spitznagel: The Hedge Fund Manager Betting $6 Billion On A Doomsday Scenario – Yahoo! Finance

On roughly 95 trades out of 100 they lose money… Spitznagel is unruffled as he sits in his office listening to classical music and losing money each day. He is ready and waiting for the next black swan to arrive. 

Spitznagel is pretty young to be so pessimistic; only about 40. So he might have gotten that way from Nassim Taleb, the author of “The Black Swan.” Spitznagel was Taleb’s right hand man at Empirica, another doom-scenario fund. Taleb is now principal and senior scientific adviser at Universa (he shut Empirica after getting seriously ill).

The Hidden Chapter -Do Not Read This

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Hmm, at the very least, an interesting Idea.

The third and why your reading this, was ‘The Black Swan’ by Nassim Nicholas Taleb, which I acquired, true to form, totally randomly, from an Italian book store in a small town. Is it true? Could it be possible? Did Nassim Nicholas Taleb leave a Da Vinci style code in his book that you all missed, right under your very noses? Thus confirming the blindness to black swan events and to prove his point? Is it a sophisticated treasure hunt? What’s the prize? Is it an experiment!? Reader, you do not know, however do you enjoy finding out? You will able too with this book.

John Cleese – interview – The legendary ex-Python talks to us ahead of his wide-ranging Alimony Tour | The List

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Nice Find! HatTip to Dave Lull.

Before that, he’s writing his next one-man show, Why There is No Hope, a ‘cutting-edge’ satirical production based on philosopher and finance mathematician Nassim Nicholas Taleb’s Black Swan theory about unexpected events of large magnitude. Popularised in the aftermath of the credit crunch, Taleb’s theory for Cleese essentially boils down to the idea that we can never predict the unexpected and that so-called experts are invariably ‘hopeless’. ‘The implication is that there’s no hope if we go on the way we are, and that kind of research lends itself to very funny conclusions. [Taleb] is an unbearably vain main of course, but what he says is absolutely fantastic.’

The Future Has Thicker Tails than the Past: Model Error as Branching Counterfactuals by Nassim Taleb :: SSRN

The Future Has Thicker Tails than the Past: Model Error as Branching Counterfactuals




Nassim Nicholas Taleb


NYU-Poly

May 23, 2011




Abstract:
    


Ex ante predicted outcomes should be interpreted as counterfactuals (potential histories), with errors as the spread between outcomes. But error rates have error rates. We reapply measurements of uncertainty about the estimation errors of the estimation errors of an estimation treated as branching counterfactuals. Such recursions of epistemic uncertainty have markedly different distributial properties from conventional sampling error, and lead to fatter tails in the projections than in past realizations. Counterfactuals of error rates always lead to fat tails, regardless of the probability distribution used. A mere .01% branching error rate about the STD (itself an error rate), and .01% branching error rate about that error rate, etc. (recursing all the way) results in explosive (and infinite) moments higher than 1. Missing any degree of regress leads to the underestimation of small probabilities and concave payoffs (a standard example of which is Fukushima). The paper states the conditions under which higher order rates of uncertainty (expressed in spreads of counterfactuals) alters the shapes the of final distribution and shows which a priori beliefs about conterfactuals are needed to accept the reliability of conventional probabilistic methods (thin tails or mildly fat tails).

Number of Pages in PDF File: 11

Mercenary Trader » Cockroaches, Extinction Events and Anti-Fragility

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Post also quotes Rick Bookstaber who uses a biological metaphor – survival over time – in weighing investment strategies.

This train of thought was jogged by a Wharton discussion with Nassim Taleb on fragility and over-optimization (available via Paul Kedrosky here).

In arguing why an oil shock could actually be a good thing — a sort of wake-up call to get us off our butts — Taleb brings up the concept of “anti-fragility,” also the subject of his “Black Swan” follow-up:

There is robustness, fragility, and anti-fragility. [Anti-fragility] is not robustness, it is beyond… you give someone a little poison and they get stronger.

Economic life gets stronger not with bailouts, but with bankruptcies. Evolution works not with bailouts — there are no bailouts in nature — but with competition and natural selection.

So you need to have some stressors. And we have not been stressed enough (in regard to oil prices)… this is the fragility of depending on one source, one product.

It is optimal to use oil, but more dangerous… almost 99 cases out of 100, optimization makes you vulnerable and fragile.