'We Use Only 10% of Our Brains.' is 100% B.S.

I've long been skeptical of the idea that humans use only 10% of their brain capacity. It's like arguing we waste our capacity for limb use by only walking on our legs. The Atlantic's Sam McDougle makes mincemeat of this myth here. The article has some nice reporting about where we got this hare-brained notion in the first place, and a little reflection on the present state of neuroscience.