I was wondering about kids' IQs and the percentages. How can you there be 2 5 year olds, 2 6 year olds, 2 7 year olds, and so on, per 100, yet only 2 per 100 18-100 year olds per 100? Does that make sense? What happens? Does that mean that most tested kids wind up not being gifted adults on an IQ test?

Another thought.. I noticed that Mensa accept the WISC GAI of 130. But what if their FSIQ is 115? Does that mean as an adult they wouldn't make it into Mensa? Does that mean in 10 years Mensa will consist of the top 20%?