Black Swan

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Black Swan

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Read this on Doctor Donkey's recommendation. The subject-- risk and unexpected catastrophic consequences-- is pretty dry. Fortunately Taleb is a very good writer, and makes the subject interesting. The book is a strange mix of philosophy, history, skewering of experts (especially economists and statisticians) that works pretty well.

Posters here who buy this book should buy the second edition-- it adds a different dimension to the original, and the allusions to his mancrush on Art DeVany are kind of funny.

He's also entertaining when he deals with criticism:
http://www.fooledbyrandomness.com/easterbrook.pdf
"Liberalism is arbitrarily selective in its choice of whose dignity to champion." Adrian Vermeule

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Re: Black Swan

Post by nafod »

You'd like Thinking Fast & Slow by Kahneman too. Here's an example of exposing flaws in the thinking process. If you have access to enough people to ask these questions, give it a try and see the response. Break them into two groups, or just ask the same group both questions and see their responses.

First Group:
I just gave you $1000, and now I offer you a choice you must take
A. You can take another sure $500
B. You can play a bet where we flip a coin so it is 50/50 that you get either $0 or $1000

Second Group:
I just gave you $2000. Now I offer you a choice you must take
A. You can give back a sure $500
B. You can play a bet where we flip a coin so it is 50/50 that you give back either $0 or $1000

The cool thing is that you'll get two different answers on average. I do this all the time. The first group tends to take the sure thing. The second group tends to take the bet. Yet mathematically they are exactly identical, you either get a sure $1500 or you take a bet on $1000/$2000. Kahneman explains why in his book.
Don’t believe everything you think.

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Re: Black Swan

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I'll check that out, thanks. One of the things I liked about Taleb's book is that he's a bit of an ass. Definitely ups the entertainment factor.
"Liberalism is arbitrarily selective in its choice of whose dignity to champion." Adrian Vermeule

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Re: Black Swan

Post by Freki »

I liked Black Swan but yeah, he really thinks highly of himself.

Will probably pick up his new book at some point.

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Re: Black Swan

Post by DrDonkeyLove »

I will check out Kahneman.
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Re: Black Swan

Post by nafod »

Just spent 5 hours on plane reading Black Swan. He is awesomely full of himself, in a great way. Enjoying it a lot.
Don’t believe everything you think.

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Re: Black Swan

Post by WildGorillaMan »

Turdacious wrote:I'll check that out, thanks. One of the things I liked about Taleb's book is that he's a bit of an ass. Definitely ups the entertainment factor.

I think Fooled By Randomness is his best work. Black Swan suffers from a common ailment: the success of his first book gave him the clout to let him tell his editors to fuck off and not attempt to truncate or abridge his self-professed genius. As a result the whole book is a bit of a mess. It reads like a first draft. A first draft written drunk (NTTAWWT).
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Re: Black Swan

Post by lasalle »

Picked it up based on this thread and finished out of stubbornness. That guy is an unrepentant asshole-the "I'm smarter than everyone in the room" bit got old by chapter 1.

Interesting thesis, though.

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Re: Black Swan

Post by nafod »

Was reading his postscript, which was interesting. What needs to be done to make the economy robust.
1. What is fragile should break early while it is still small. Nothing should ever become too big
to fail. Evolution in economic life helps those with the maximum amount of hidden risks – and
hence the most fragile – become the biggest.

2. No socialisation of losses and privatisation of gains. Whatever may need to be bailed out
should be nationalised; whatever does not need a bail-out should be free, small and riskbearing.

We have managed to combine the worst of capitalism and socialism.
In France in the 1980s, the socialists took over the banks. In the US in the 2000s, the banks took over the
government. This is surreal.

3. People who were driving a school bus blindfolded (and crashed it) should never be given a
new bus. The economics establishment (universities, regulators, central bankers, government
officials, various organisations staffed with economists) lost its legitimacy with the failure of the
system. It is irresponsible and foolish to put our trust in the ability of such experts to get us out
of this mess. Instead, find the smart people whose hands are clean.

4. Do not let someone making an “incentive” bonus manage a nuclear plant – or your financial
risks. Odds are he would cut every corner on safety to show “profits” while claiming to be
“conservative”. Bonuses do not accommodate the hidden risks of blow-ups. It is the asymmetry
of the bonus system that got us here. No incentives without disincentives: capitalism is about
rewards and punishments, not just rewards.

5. Counter-balance complexity with simplicity. Complexity from globalisation and highly
networked economic life needs to be countered by simplicity in financial products. The complex
economy is already a form of leverage: the leverage of efficiency. Such systems survive thanks
to slack and redundancy; adding debt produces wild and dangerous gyrations and leaves no
room for error. Capitalism cannot avoid fads and bubbles: equity bubbles (as in 2000) have
proved to be mild; debt bubbles are vicious.

6. Do not give children sticks of dynamite, even if they come with a warning . Complex
derivatives need to be banned because nobody understands them and few are rational enough
to know it. Citizens must be protected from themselves, from bankers selling them “hedging”
products, and from gullible regulators who listen to economic theorists.

7. Only Ponzi schemes should depend on confidence. Governments should never need to
“restore confidence”. Cascading rumours are a product of complex systems. Governments
cannot stop the rumours. Simply, we need to be in a position to shrug off rumours, be robust
in the face of them.

8. Do not give an addict more drugs if he has withdrawal pains. Using leverage to cure the
problems of too much leverage is not homeopathy, it is denial. The debt crisis is not a
temporary problem, it is a structural one. We need rehab.

9. Citizens should not depend on financial assets or fallible “expert” advice for their retirement.
Economic life should be definancialised. We should learn not to use markets as storehouses of
value: they do not harbour the certainties that normal citizens require. Citizens should
experience anxiety about their own businesses (which they control), not their investments
(which they do not control).

10. Make an omelette with the broken eggs. Finally, this crisis cannot be fixed with makeshift
repairs, no more than a boat with a rotten hull can be fixed with ad-hoc patches. We need to
rebuild the hull with new (stronger) materials; we will have to remake the system before it does
so itself. Let us move voluntarily into Capitalism 2.0 by helping what needs to be broken break
on its own, converting debt into equity, marginalising the economics and business school
establishments, shutting down the “Nobel” in economics, banning leveraged buyouts, putting
bankers where they belong, clawing back the bonuses of those who got us here, and teaching
people to navigate a world with fewer certainties.

Then we will see an economic life closer to our biological environment: smaller companies,
richer ecology, no leverage. A world in which entrepreneurs, not bankers, take the risks and
companies are born and die every day without making the news.

In other words, a place more resistant to black swans.
Don’t believe everything you think.

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Re: Black Swan

Post by Pinky »

I liked that lesbian scene.
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Re: Black Swan

Post by Chessman »

http://www.policymic.com/articles/19909 ... te-bankers

Good review of his new book Anti-Fragile. Looking forward to it after Black Swan and Fooled by Randomness. He even addresses exercise:
For exercise, Taleb, who is 52, says he wants to, “reach the level of a sub-mediocre professional weight-lifter.” Dead lifting, or lifting an incredibly heavy object, fits perfectly into another theory of the book—mathematical convexity.

The simple idea of convexity is, “If you lift 100 kilos it is more beneficial than lifting one gram 100 times.” If a double dose gets more than twice the response, it is convex. Convex systems like volatility. Concave systems hate it. A system is convex (and by extension anti-fragile) if it has more to gain than to lose from disorder. As long as it doesn’t kill you, it makes you stronger, as the old maxim goes.

His perfect workout is, “Go to the gym and get into a fight on the way. Win. Go into the basemen and lift something very heavy.” Randomness and convexity teach the body to be strong and adaptable. Taleb scorns the idea of running on a treadmill. “If a Martian saw people on treadmill machines, they would think they were in a Russian labor camp.”
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Re: Black Swan

Post by nafod »

Got it, currently reading it. Great so far.

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Re: Black Swan

Post by buckethead »

The simple idea of convexity is, “If you lift 100 kilos it is more beneficial than lifting one gram 100 times.”
That's not mathematical convexity, it's mathematical stupudity. Thats not even 4 oz

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Re: Black Swan

Post by nafod »

BucketHead wrote:
The simple idea of convexity is, “If you lift 100 kilos it is more beneficial than lifting one gram 100 times.”
That's not mathematical convexity, it's mathematical stupudity. Thats not even 4 oz
50 hectares lifted 20 decaliters?
Don’t believe everything you think.

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Re: Black Swan

Post by lasalle »

Chessman wrote:http://www.policymic.com/articles/19909 ... te-bankers

Good review of his new book Anti-Fragile. Looking forward to it after Black Swan and Fooled by Randomness. He even addresses exercise:
For exercise, Taleb, who is 52, says he wants to, “reach the level of a sub-mediocre professional weight-lifter.” Dead lifting, or lifting an incredibly heavy object, fits perfectly into another theory of the book—mathematical convexity.

The simple idea of convexity is, “If you lift 100 kilos it is more beneficial than lifting one gram 100 times.” If a double dose gets more than twice the response, it is convex. Convex systems like volatility. Concave systems hate it. A system is convex (and by extension anti-fragile) if it has more to gain than to lose from disorder. As long as it doesn’t kill you, it makes you stronger, as the old maxim goes.

His perfect workout is, “Go to the gym and get into a fight on the way. Win. Go into the basemen and lift something very heavy.” Randomness and convexity teach the body to be strong and adaptable. Taleb scorns the idea of running on a treadmill. “If a Martian saw people on treadmill machines, they would think they were in a Russian labor camp.”
Great link-thanks. I find reading about his work more interesting (and frankly way easier) than reading the work itself. Another great article/interview here: http://www.guardian.co.uk/books/2012/no ... -interview

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Re: Black Swan

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Chessman wrote:http://www.policymic.com/articles/19909 ... te-bankers

Good review of his new book Anti-Fragile. Looking forward to it after Black Swan and Fooled by Randomness. He even addresses exercise:
For exercise, Taleb, who is 52, says he wants to, “reach the level of a sub-mediocre professional weight-lifter.”
He wants to be -s-?
"Liberalism is arbitrarily selective in its choice of whose dignity to champion." Adrian Vermeule

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Re: Black Swan

Post by WildGorillaMan »

lasalle wrote:
Chessman wrote:http://www.policymic.com/articles/19909 ... te-bankers

Good review of his new book Anti-Fragile. Looking forward to it after Black Swan and Fooled by Randomness. He even addresses exercise:
For exercise, Taleb, who is 52, says he wants to, “reach the level of a sub-mediocre professional weight-lifter.” Dead lifting, or lifting an incredibly heavy object, fits perfectly into another theory of the book—mathematical convexity.

The simple idea of convexity is, “If you lift 100 kilos it is more beneficial than lifting one gram 100 times.” If a double dose gets more than twice the response, it is convex. Convex systems like volatility. Concave systems hate it. A system is convex (and by extension anti-fragile) if it has more to gain than to lose from disorder. As long as it doesn’t kill you, it makes you stronger, as the old maxim goes.

His perfect workout is, “Go to the gym and get into a fight on the way. Win. Go into the basemen and lift something very heavy.” Randomness and convexity teach the body to be strong and adaptable. Taleb scorns the idea of running on a treadmill. “If a Martian saw people on treadmill machines, they would think they were in a Russian labor camp.”
Great link-thanks. I find reading about his work more interesting (and frankly way easier) than reading the work itself. Another great article/interview here: http://www.guardian.co.uk/books/2012/no ... -interview



Sounds like he's trying to out-DeVany DeVany.
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Re: Black Swan

Post by Turdacious »

nafod wrote:You'd like Thinking Fast & Slow by Kahneman too. Here's an example of exposing flaws in the thinking process. If you have access to enough people to ask these questions, give it a try and see the response. Break them into two groups, or just ask the same group both questions and see their responses.

First Group:
I just gave you $1000, and now I offer you a choice you must take
A. You can take another sure $500
B. You can play a bet where we flip a coin so it is 50/50 that you get either $0 or $1000

Second Group:
I just gave you $2000. Now I offer you a choice you must take
A. You can give back a sure $500
B. You can play a bet where we flip a coin so it is 50/50 that you give back either $0 or $1000

The cool thing is that you'll get two different answers on average. I do this all the time. The first group tends to take the sure thing. The second group tends to take the bet. Yet mathematically they are exactly identical, you either get a sure $1500 or you take a bet on $1000/$2000. Kahneman explains why in his book.
It's good thanks. Taleb and Kahneman strike me as kind of opposites. Ones a trader, the other an academic; one looks at the individual component of patterns, one looks at the bigger picture. One focuses on thought patterns, one focuses on risks and consequences to complex systems. Considering their respective fields, they both write exceptionally well.
"Liberalism is arbitrarily selective in its choice of whose dignity to champion." Adrian Vermeule


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Re: Black Swan

Post by milosz »

The cover of Anti-Fragile should have been a picture of Taleb sucking his own dick.

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