They told me "intelligence" is a measure of the ability to learn. I had always assumed it included the flexibility to transfer that ability to any subject, given the right connection with a teacher, but have been told that's not the case. Guess adaptability really isn't a factor because what about the prodigies who are gifted in one specific domain? I also mistakenly believed speed was a part of it but sounds like they're phasing that out of the equation these days.
Carol Dweck has some published theories on intelligence. And Katelyn's mom just posted a link to another "nature bs. Nurture" article. That's always a big topic.

Youth lives by personality, age lives by calculation. -- Aristotle on a calendar