Comment by ameliaquining

"William James Sidis whos IQ was somewhere between 250 and 300."

Wikipedia: "According to Sperling, Sidis's sister Helena told him that an unnamed examiner had estimated Sidis's intelligence in this range, but no documentation has ever been found to support this claim. Modern psychologists and historians of intelligence testing have noted several problems with such extreme IQ estimates: IQ tests in the early 1900s were not standardized or reliable enough to produce meaningful scores above 200. The concept of IQ as measured by modern tests did not exist during Sidis's childhood. Extreme scores often result from extrapolation errors rather than actual measurement. Contemporary accounts focused on Sidis's specific abilities rather than general intelligence measures."

This level of sloppiness about a simple fact-checkable claim means I can't trust the article about anything else. (To say nothing of the claims that aren't quantified at all.)

Also, I feel that it's a bit misleading not to mention that Sidis was "estranged from everyone" in large part because he was a socialist during the First Red Scare.