The Power of the Brain

I am told dang amazing tidbits about that purple gunk in my skull, and your skull, and his skull, etc. I sit through videos in health that say to me, YOUR BRAIN kicks some solid butt. On top of being conscience and able to power through questions, it takes care of my body in ways I can't even imagine. Constantly making thousands of small changes and maintaining my homeostasis. 

So if its capable of so many things, if it is constantly plowing through amazing amounts of information, why do people have such trouble with puny things like math, remembering the date of the October revolution, and such things like that. Why do things pass me, things I should easily pick up on, when I can sense the .1 degree change in temp. in my foot and take the measures to fix it. All this without my thought. With such powerful brains with so much potential, why are humans still so stupid? Evolution is slacking hardcore if its true. Sure we have geniuses, so why aren't those geniuses kids just as smart, if not smarter? And so on through the family line. Humans helping each other survive might hinder the whole evolution thing because the less intelligent can make a living and reproduce just fine. Maybe that's it. 

Well anyways, just some thoughts on my part, probably didn't make too much sense in a line of thought but hey just like to rant.