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Loading... Fooled by Randomness: The Hidden Role of Chance in Life and in the Markets (original 2004; edition 2005)by Nassim Nicholas Taleb
Work detailsFooled by Randomness: The Hidden Role of Chance in Life and in the Markets by Nassim Nicholas Taleb (2004) Amazon.com provides an interesting statistical commentary on this and all other products on its site: a graphic of the relative proportions of different star ratings assigned by customer reviews. If you flip this on its side it looks a lot more like what it is: a statistical representation of customers' views of the book. Nassim Taleb's Fooled by Randomness has an unusual "curve": a short "head" of 5 star reviews and a long tail of lesser ratings which doesn't tail off. (it's even flatter on Amazon.co.uk!) A large standard deviation, then, against a mean of four stars, compared to Leonard Mlodinow's The Drunkard's Walk: How Randomness Rules Our Lives- also a four star average, but a much more conventional distribution of grades with a tighter standard deviation (a consistent curve from 50% five star to 2% one star, against Taleb's 46% five star and 11% one star). So I have learned something from this (or Mlodinow's) book. Having being equally entertained and aggravated by Taleb's more recent The Black Swan, I was leery of picking up this earlier effort. While Taleb is undoubtedly stimulating literary company, he does verges on being a crashing bore, crossing the verge on and ramming your letterbox on many occasions. He seems also to harbours some unremedied professional grievances - the award of Nobel prizes is something in particular which irks him. Taleb's writing is constantly grandiose and egotistical - but he is self-aware enough to not only realise but celebrate that fact. So a real vegemite, love-him-or-hate-him sort of writer. Fooled By Randomness is, if anything, *more* bombastic, and its content less interesting. Its first half comprises mainly anecdotes (possibly apocryphal) about colleagues unnamed, and Taleb's repeated efforts to persuade you just how well read and what a voracious reader he is. (Interestingly in Black Swan he places much store in his *anti-library* - the books he has not read). Taleb's early observations about probability are pat, and under explained and, as other reviewers point out, have been more thoroughly and less idiosyncratically expounded by others (my recommendation is Leonard Mlodinow's book cited above). On probability itself, Taleb's love of anecdote sometimes contradicts his own preaching. At one point he recounts a bit of "anecdotal empiricism" as to "Anchoring" of expectation. "I asked the local hotel concierge how long it takes to go to the airport. "40 minutes?" I asked. "About 35" he answered. Then I asked the lady at the reception if the journey was 20 minutes. "No, about 25" she said. I timed the trip: 31 minutes. Two paragraphs later, in his next anecdote, Taleb rails against the stupidity of a man who derives conclusions from a single observation. There is a seam of useful information in the second half of this book, but you must wade through quite a lot of self-aggrandisement to find it, and none is unique: as mentioned, there are better presented and less irritating accounts of the same information elsewhere, so Mr Taleb may be disappointed to see yet another equivocal assessment of his book on this site. Except, he tells us, he won't be: he doesn't read or care about "amateur" reviewers on Amazon anyway, so no harm done. Like The Black Swan, this is a book by/about a self-evidently nasty man with a message to send. We aren’t good at assessing risks, and we fool ourselves that we are. Though he doesn’t use the term “value at risk,” the concept that helped overleverage and then explode the economy, he viciously and presciently critiques the mentality that led to greater and greater risks for smaller and smaller percentages of return. Though published earlier, this book is shorter and contains less inside baseball score-settling than The Black Swan, though I might recommend just reading a couple of things from his website instead of either, especially if you’re already familiar with behavioral economics and the various heuristics that distort our decisionmaking. This book seems more esoteric than Black Swan. There were some great concepts presented here, but overall I found the book more difficult to follow than Black Swan. Some topics were discussed in both books. I started the book with high expectations. Fooled By Randomness was supposedly one of the classics of investing, or so I heard. After reading it, I am not sure what it was. It appears to be philosophy about philosophy and science. Basic conclusions drawn can be summarized as such: (1) beware of rare event i.e. black swan (2) don't just rely on historical data purely (3) decision should be judged by circumstances when decision was made and not by outcome (4) luck plays a huge part in success/failure in random environment (5) we are emotional fool and we can do nothing about it. Book is not difficult, but neither easy read since it delves into meta philosophy quite often. And if I can say my learning from it: nothing significant.
The lesson here for investors is powerful and frightening. How much can you rely on the track records of investment advisers, mutual fund managers, newspaper columnists, or even the market as a whole in making decisions about your investment portfolio? Not nearly as much as you probably think. Is contained in
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(retrieved from Amazon Thu, 14 Feb 2013 13:27:38 -0500)
Contends that randomness and probability have a large impact on life, claims that people regularly fail to recognize that role, and tells how to differentiate between randomness in general and the financial markets in particular.
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Two editions of this book were published by Audible.com.
Penguin AustraliaAn edition of this book was published by Penguin Australia.
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In particular he demonstrates how irrational human beings are when it comes to understanding:
- black swan (rare) events and planning for them,
- that events with (seemingly) positive correlations do not necessarily mean that one causes the other, and,
- that randomness and uncertainty (i.e. luck) have a greater influence on the outcomes of human activities than most people, even those who think they act rationally, care to believe.
While written fairly clearly, I will admit that I had to read some sections more than once before I understood exactly what the author was saying, even though I have, or thought I had, a better than average understanding of probability and statistics.
Now at least I have a good understanding of why I act irrationally even when I know the true probability of success in some activities, such as when buying lottery tickets. (