Fun commentary on the evolution of the brain:

"Pulp science fiction has bequeathed us some pretty specific images of what a more evolved brain will be like. It will be much larger, of course, causing the skull to expand to roughly twice the current normal size and forcing all the hair follicles to die. Fortunately, the bald look has lately become quite fashionable. Concurrently, as side effects, the eyes will take on a piercing, almost malevolent look, and the limbs will tend to become reedy. Surviving unevolved humans will wonder how these superhumans are able to support their own heads.

Telepathy is likely, and possibly also psychokinesis and the ability to inflict horrible pain on rude waiters and bad drivers simply by glaring at them. Fans of the original "Outer Limits" television show will have a head start in spotting the evolved ones among us."