Dolphins...
can apparently put half their brain to sleep at will. This could be one way to solve the problem if we could affect human evolvement. But that takes a lot of time.
I fail to understand (pun intended) why our brains would suddenly just stop to improve. If our brains use 20% of our energy to function now, what is to stop them from using 21% in time. After all, since we have cars and other such vehicles we don't use our energy for much else, except driving around to find a parking spot near a gym. Is "morbidly obese America" just an intelligencebomb waiting to happen? Yes, that must be it. Those sneaky americans have had us thinking that they are just fat slobs (sorry if that's you), when they are infact preparing for even more overbearing world domination. Ooops, I think I just went o.t.