Gordão Ucrânia não argumentou nada, mas de fato tem muita gente que levanta bons questionamentos contra o próprio conceito de QI. Eu não tenho duvida nenhuma que o Taleb é inteligente
para c***lho e ele não curte muito esse papo, inclusive deu cagada monstra na cabeça da galera da psicometria.
Vou deixar alguns trechinhos, mas vale a leitura completa.
IQ is largely a pseudoscientific swindle
Background : “IQ” is a stale test meant to measure mental capacity but in fact mostly measures
extreme unintelligence (learning difficulties), as well as, to a lesser extent (with a lot of noise), a form of intelligence, stripped of 2nd order effects — how good someone is at taking some type of exams designed by unsophisticated nerds. It is
via negativa not
via positiva. Designed for learning disabilities, and given that it is not too needed there (see argument further down), it ends up selecting for exam-takers, paper shufflers, obedient IYIs (intellectuals yet idiots), ill adapted for “real life”. (The fact that it correlates with general incompetence makes the overall correlation look high, even when it is random, see Figures 1 and 2.) The concept is poorly thought out mathematically by the field (commits a severe flaw in correlation under fat tails and
asymmetries; fails to properly deal with
dimensionality; treats the mind as an instrument not a complex system), and seems to be promoted by
- Racists/eugenists, people bent on showing that some populations have inferior mental abilities based on IQ test=intelligence; those have been upset with me for suddenly robbing them of a “scientific” tool, as evidenced by the bitter reactions to the initial post on twitter/smear campaigns by such mountebanks as Charles Murray. (Something observed by the great Karl Popper, psychologists have a tendency to pathologize people who bust them by tagging them with some type of disorder, or personality flaw such as “childish” , “narcissist”, “egomaniac”, or something similar). Note the online magazine Quillette seems to be a cover for a sinister eugenics program (with tendencies I’ve called “neo-Nazi” under the cover of “free thought”.) Note I am finding statistical flaws in Richard Plomin’s work — the pope of twin studies (see intransitivity of correlation in my technical addendum; he doesn’t get it).
- Psychometrics peddlers looking for suckers (military, large corporations) buying the “this is the best measure in psychology” argument when it is not even technically a measure — it explains at best between 2 and 13% of the performance in some tasks (those tasks that are similar to the test itself)[see interpretation of .5 correlation further down], minus the data massaging and statistical cherrypicking by psychologists; it doesn’t satisfy the monotonicity and transitivity required to have a measure (at best it is a concave measure). No measure that fails 80–95% of the time should be part of “science” (nor should psychology — owing to its sinister track record — be part of science (rather scientism), but that’s another discussion).
Visualizar anexo 354518
Real Life: In academia there is no difference between academia and the real world; in the real world there is. 1) When someone asks you a question in the real world, you focus first on “
why is he/she asking me that?”, which shifts you to the environment (see Fat Tony vs Dr John in
The Black Swan) and detracts you from the problem at hand. Philosophers have known about that problem forever.
Only suckers don’t have that instinct. Further, take the sequence {1,2,3,4,
x}. What should
x be? Only someone who is clueless about induction would answer 5 as if it were the
only answer (see Goodman’s problem in a philosophy textbook or ask your closest Fat Tony) [
Note: We can also apply here Wittgenstein’s rule-following problem, which states that any of an infinite number of functions is compatible with any finite sequence. Source: Paul Bogossian]. Not only clueless, but obedient enough to want to think in a certain way. 2) Real life never never offers crisp questions with crisp answers (most questions don’t have answers; perhaps the worst problem with IQ is that it seem to selects for people who don’t like to say “there is no answer, don’t waste time, find something else”.) 3) It takes a certain type of person to waste intelligent concentration on classroom/academic problems. These are lifeless bureaucrats who can muster
sterile motivation. Some people can only focus on problems that are real, not fictional textbook ones (see the note below where I explain that I can only concentrate with real not fictional problems). 4) IQ doesn’t detect
convexity of mistakes (by an argument similar to bias-variance you need to make a lot of small inconsequential mistake in order to avoid a large consequential one. See
Antifragile and how
any measure of “intelligence” w/o convexity is sterile
edge.org/conversation/n…). To do well you must survive; survival requires some mental biases directing to some errors. 5)
Fooled by Randomness: seeing shallow patterns in not a virtue — it leads to naive interventionism. Some psychologist wrote back to me: “IQ selects for pattern recognition, essential for functioning in modern society”. No. Not seeing patterns except when they are significant is a virtue in real life. 6) To do well in life you need depth and ability to select your own problems and to think independently. And one has to be a lunatic (or a psychologist) to believe that a standardized test will reveal
independent thinking.