I don't have any meaningful statistics on this myself, but I always found this passage from The Jargon File interesting: Another trait is probably even more im

I don't have any meaningful statistics on this myself, but I always found this passage from The Jargon File interesting: Another trait is probably even more important: the ability to mentally absorb, retain, and reference large amounts of ‘meaningless’ detail, trusting to later experience to give it context and meaning. A person of merely average analytical intelligence who has this trait can become an effective hacker, but a creative genius who lacks it will swiftly find himself outdistanced by people who routinely upload the contents of thick reference manuals into their brains.