So why have we missed a revolution in human possibility? Because altered states have a distinctly checkered history of altering (nation) states. Because pipers, cults, and commies scare the pants off us. Because the drive to get out of our heads has ended in tragedy as often as ecstasy. Because the pale protects us as much as it confines us. Because no one wants to end up like the children of Hamelin, lured beyond the safety of the town walls, never to be heard from again.