There's a bomb that keeps ticking but never goes boom: the population bomb. For centuries, pessimists have predicted that population growth will overwhelm the planet's resources and lead to an ecological armageddon. Yet, time and again, their doomsday prophecies have proven spectacularly wrong. Not only does the human race keep growing, but living standards keep going up, not down. Why do they keep underestimating humanity? They don't understand that our ultimate resource is not anything in the ground. So what is it? Watch this episode of FEEcast to find out!