The brain isn't 'badly' designed as much as people often claim and it also shows a remarkable amount of neuroplasticity and ability to alter it's cognative abilities based the demands and situations that it is placed in. I have reservations on the focus that our society places on magic pills versus training your mind... At some point I would love to be able to modify and edit my mind and cognition, but honestly the chemicals we peddle now are akin to fixing a CPU with a butane torch.