Megamind Level
What do you think GM Hikaru IQ is?

I love how Ziryab is searching everything up and providing us with great answers
Thanks. I read Scott Kaufman’s book last fall. When I was researching the notion of talent for an article I was writing, an article he wrote on the subject brought his work to my attention. Ungifted: Intelligence Redefined offers a great overview of intelligence testing and its uses and abuses.

I've also seen you post at least one message on every single thread i've been gone to, even completely random ones that are 1-2 years old

Not always...as I said, someone can be a chess mastermind with having an average IQ, while being average with a high IQ
IQ was originally designed to measure the intelligence of some, as many may call it, "school subjects". However, after a while, the original creator realized that it couldn't measure creativity, emotional intelligence, etc., so they updated the IQ measuring system so that it could include some of those.
Although the concept of IQ as such was invented by American racists (Google Eugenics), many current intelligence tests, such as the Wechsler, are efforts to return to Alfred Binet’s original purpose.
From Scott Kaufman, Ungifted: Intelligence Redefined