So there was a thread: https://www.physicsforums.com/showthread.php?p=2847138#post2847138 about IQ and being successful that I think is an interesting topic and is worthy of discussion so I thought I'd start a new thread here. The reason for doing so is that I was recently reading Malcolm Gladwell's Outliers wherein one of the chapters he uses some recent and previous studies and discusses that idea that after a certain point the correlation between IQ and being successful in terms of a subject diverges. That is to say that there is some threshold. Gladwell quotes "Knowledge of a boy's IQ is of little help if you are faced with a formful of clever boys". This is of course analyzing the situation for the view-point that an IQ is a reliable measure of intelligence. Any thoughts?