Humans need a world where being lazy causes their standard of living to deteriorate in a very noticable way, where working hard causes their standard of living to improve, and where being stupid hurts.

If someone does nothing else, they should cook their own food. The rewards and punishments are easy to understand. Maybe the most critical part is that a lack of thinking leads to a burn that hurts. Stupid should hurt, otherwise we get teenagers who answer every question with their favorite one-digit number. What is one plus one? Eight. Who is President of the United State? Eight.