Statistical and applied probabilistic knowledge is the core of knowledge; statistics is what tells you if something is true, false, or merely anecdotal; it is the "logic of science"; it is the instrument of risk-taking; it is the applied tools of epistemology; you can't be a modern intellectual and not think probabilistically—but... let's not be suckers. The problem is much more complicated than it seems to the casual, mechanistic user who picked it up in graduate school. Statistics can fool you. In fact it is fooling your government right now. It can even bankrupt the system (let's face it: use of probabilistic methods for the estimation of risks did just blow up the banking system).
The current subprime crisis has been doing wonders for the reception of any ideas about probability-driven claims in science, particularly in social science, economics, and "econometrics" (quantitative economics). Clearly, with current International Monetary Fund estimates of the costs of the 2007-2008 subprime crisis, the banking system seems to have lost more on risk taking (from the failures of quantitative risk management) than every penny banks ever earned taking risks. But it was easy to see from the past that the pilot did not have the qualifications to fly the plane and was using the wrong navigation tools: The same happened in 1983 with money center banks losing cumulatively every penny ever made, and in 1991-1992 when the Savings and Loans industry became history.
Note: Thanks to agatesystems from MSN BRK Shareholders Board for the original reference
Showing posts with label Black Swan. Show all posts
Showing posts with label Black Swan. Show all posts
Thursday, September 18, 2008
Monday, June 9, 2008
Nassim Nicholas Taleb: the prophet of boom and doom
Taleb's top life tips
1 Scepticism is effortful and costly. It is better to be sceptical about matters of large consequences, and be imperfect, foolish and human in the small and the aesthetic.
2 Go to parties. You can’t even start to know what you may find on the envelope of serendipity. If you suffer from agoraphobia, send colleagues.
3 It’s not a good idea to take a forecast from someone wearing a tie. If possible, tease people who take themselves and their knowledge too seriously.
4 Wear your best for your execution and stand dignified. Your last recourse against randomness is how you act — if you can’t control outcomes, you can control the elegance of your behaviour. You will always have the last word.
5 Don’t disturb complicated systems that have been around for a very long time. We don’t understand their logic. Don’t pollute the planet. Leave it the way we found it, regardless of scientific ‘evidence’.
6 Learn to fail with pride — and do so fast and cleanly. Maximise trial and error — by mastering the error part.
7 Avoid losers. If you hear someone use the words ‘impossible’, ‘never’, ‘too difficult’ too often, drop him or her from your social network. Never take ‘no’ for an answer (conversely, take most ‘yeses’ as ‘most probably’).
8 Don’t read newspapers for the news (just for the gossip and, of course, profiles of authors). The best filter to know if the news matters is if you hear it in cafes, restaurants... or (again) parties.
9 Hard work will get you a professorship or a BMW. You need both work and luck for a Booker, a Nobel or a private jet.
10 Answer e-mails from junior people before more senior ones. Junior people have further to go and tend to remember who slighted them.
1 Scepticism is effortful and costly. It is better to be sceptical about matters of large consequences, and be imperfect, foolish and human in the small and the aesthetic.
2 Go to parties. You can’t even start to know what you may find on the envelope of serendipity. If you suffer from agoraphobia, send colleagues.
3 It’s not a good idea to take a forecast from someone wearing a tie. If possible, tease people who take themselves and their knowledge too seriously.
4 Wear your best for your execution and stand dignified. Your last recourse against randomness is how you act — if you can’t control outcomes, you can control the elegance of your behaviour. You will always have the last word.
5 Don’t disturb complicated systems that have been around for a very long time. We don’t understand their logic. Don’t pollute the planet. Leave it the way we found it, regardless of scientific ‘evidence’.
6 Learn to fail with pride — and do so fast and cleanly. Maximise trial and error — by mastering the error part.
7 Avoid losers. If you hear someone use the words ‘impossible’, ‘never’, ‘too difficult’ too often, drop him or her from your social network. Never take ‘no’ for an answer (conversely, take most ‘yeses’ as ‘most probably’).
8 Don’t read newspapers for the news (just for the gossip and, of course, profiles of authors). The best filter to know if the news matters is if you hear it in cafes, restaurants... or (again) parties.
9 Hard work will get you a professorship or a BMW. You need both work and luck for a Booker, a Nobel or a private jet.
10 Answer e-mails from junior people before more senior ones. Junior people have further to go and tend to remember who slighted them.
Wednesday, February 6, 2008
Resolutions on Randomness: Beware the Black Swan
Resolutions on Randomness: Beware the Black Swan
You pay close attention to your marketing campaigns. You resolve to be ever more quantitative and rigorous in your approach for 2008. But have you also resolved not to be fooled by randomness, and to be aware of the nature of probabilities and risks that you face in your efforts to measure and predict the future? A few nuggets of unconventional mathematical wisdom inspired by a well-known rogue “empirical skeptic” might help.
Subscribe to:
Posts (Atom)