Drugs And Enlightenment

The more we are able to change the physical composition of the body and our brains, the more our societies can shift. That's partly what coffee did when it took off in the eighteenth century. What would happen if we invented a better, smarter drug - one that

can reduce your need for sleep, increase your concentration and make you smarter, with minimal side effects?

A second Enlightenment? Cranky dissent here.