"There ain't no Moore's Law for neurons"

Watts says, in this comment thread, : "There ain't no Moore's Law for neurons."

Well, OK, but there should be. Maybe this is just my not-so-latent singularitarian/extropian streak talking, but there bloody well should be a way to get this giant piece of almost-meat in my head to be more efficient with its inputs and, as a consequence, develop new capacities.