Calculus, Logic, Music and the Human Brain

[Darth]

Well I agree with what you are saying except for one small point. How is it possible for an individual to develop the intelligence necessary to do calculus if he were not using this intelligence? Since evolution is driven by necessity, developing the intelligence to do things that are not actually being done would in reality be a hindrance to the individual because energy would be spent developing and maintaining an ability that was not being used right?

You've broken it down as though having the level of intelligence required to do calculus, without actually knowing calculus, is just a waste of brainpower. Having x level of intelligence will allow you to do/learn lots of new things (compared to a lower level of intelligence), and do/learn other things at faster rates, calculus is but one ability amongst many. It's not that they weren't using their intelligence, just that they were not using it to do calculus. Calculus is simply yet another ability that is hypothetically available to people (and space Empresses) with x level intelligence (and other features: memory, language, attention and whatnot).