iLemming writes:
> Did not the actors Jodie Foster and Dolph Lundgren, and even the infamous
> ‘buffoon president’, George W. Bush, sport IQ’s around the 160 mark…?
Do you have evidence for any of those claims? Yes, Foster and Lundgren are pretty smart. Foster graduated from Yale with a magna cum laude degree, but there’s no publicly available evidence that I know of that her I.Q. is 160. Dolph Lundgren got a master’s in chemical engineering and was about to start on a Ph.D. in that subject at MIT when he quit to become an actor, but there is also no publicly available evidence that his I.Q. is 160. People can get those degrees without having I.Q.'s of 160. If you have some real evidence that those two were given I.Q. tests in school that showed they have I.Q.'s of 160, then you broke into the schools and stole private information, so you’re under arrest.
If you had said that those two had I.Q.'s of at least, say, 140, I might believe you. But 160 is far above what’s required for those fields. By definition, only one person in about 31,000 has an I.Q. of 160 or higher. More precisely, 160 is four standard deviations above average. Average is a 100 I.Q., and each standard deviation is 15 points of I.Q. That’s the definition of I.Q. I.Q. is not measured by a yardstick, where it’s possible that the average height of people might be increasing or decreasing over time. Each time a new I.Q. test is written, it is normed by giving it to, say, 100,000 people. The score on that test that (approximately) just three people get is the one that defines who has an I.Q. of 160 or above. It’s essentially impossible to create an I.Q. test that measures an I.Q. above 160 because that would require norming the test on more than 100,000 people, and it’s too hard to give an I.Q. test to that many people. So if you read in the news that someone has an I.Q. above 160, you’re reading nonsense.
George Bush graduated from Yale and from Harvard Business School. It doesn’t take an I.Q. of 160 to do that. If you had claimed that he must have an I.Q. of at least 130, I might believe you. If you’re claiming that you know that he scored 160 on an I.Q. test, you must have broken into his school and you’re under arrest.
> I believe it comes down to whether one has honed their abilities and focused them
> from an early age – a 200-IQ potential which is not trained or exposed to that
> which they could otherwise master, will still be a 200-IQ dullard.
Do you know how rare a 200 I.Q. is, even theoretically? Even if it were possible to give every human being who has ever lived (about 100 billion of them) an I.Q. test, a 200 I.Q. is, by definition, the highest I.Q. that could assigned, and only one person could have that I.Q. A 200 on an I.Q. test is six and two-thirds standard deviations above average (since 200 is 6 and 2/3 times 15 above 100) by definition. Six and two-thirds standard deviations is just about one in 100 billion.