"<a href=""https://www.youtube.com/watch?v=hppbxV9C63g&amp;t=34m00s"">34:00</a> What Lex is talking about here", test-taking anxiety, is a serious factor to consider when taking any sort of test. My guess is that people who are highly neurotic, like Lex, are going to struggle more to focus on the test itself if they feel they are being watched or judged while doing it. If I'm not mistaken," neuroticism (proclivity for anxiety) is the only personality trait that is negatively correlated with IQ.<br><br><a href=""https://www.youtube.com/watch?v=hppbxV9C63g&amp;t=35m00s"">35:00</a> SAT scores", like Haier is saying, are definitely good markers of cognitive ability. The smartest guy I've ever met, hands down, was a dude I went to high school with. He got a perfect score on the math section of the SAT and probably over a 750 on the verbal score if I remember correctly. My guess is he had an IQ of about 150. He went on to study philosophy (believe it or not, philosophy majors are actually one of the smartest groups across all majors) at Yale and Oxford. I remember one time in high school we were hanging out at lunch and he asked me, "Hey, do we have a test today in Physics? (Our next class)" I told him we do, so he asked to peruse my physics book before class to prepare. He went through it for 5, maybe 10 minutes tops, and came out with the highest grade in the class--as usual. A test he fuckin forgot existed and prepared for less than 10 minutes for... And the most impressive thing about him was his speech and writing. By 17 he was already more articulate than many college professors because he did a lot of personal reading in his spare time," about 90 minutes per day. I once asked him if he knew what his IQ was and he said he didn't even want to take an IQ test because he was afraid to know the result. He was actually a pretty humble guy and told me stop calling him a genius all the time haha.<br><br><a href=""https://www.youtube.com/watch?v=hppbxV9C63g&amp;t=52m30s"">52:30</a> The time old discussion of intelligence and its relation to morality. I like what Haier said here", that more intelligence is better. He is right to an extent, because a higher fluid intelligence increases the range of jobs you can do and problems you can solve effectively. But I believe fluid intelligence is a tool--a tool that can be used for good or evil. The people organizing the Nazi party under Hitler, like Himmler and Goebbels, probably had IQs of over 140; a good person can do a lot more good in the world with higher intelligence, but the reverse is equally true.