Originally Posted by jayeff

The proving part is mainly curiosity (or in my case, my mother's, since she had me take the test when I was in my teens). As to the "elite", 2% isn't particularly elite (or little) when you translate it into world population...

If you were to check out the cross-section of those who belong to Mensa (although most never attend any functions), it's a mix of people of every age, class and occupation. Most of us gravitate towards groups of one kind or another, whether just loose social groups or ones which are more formally organized, so nothing different there either.