I think we're programmed for hardship. In my experience, human beings are happiest when they're working themselves to the bone. People are more likely to feel adrift and unsatisfied when they have too much leisure time. Obstacles are good.

People are tough. We're evolved for less food; more exercise; less sleep; less security; more paranoia. The irony is that we're so good at what we do. We strive for more food; less exercise; more sleep; more security; less paranoia - and we've succeeded.

For hundreds of thousands of years, life was brutal. It still is for a good chunk of the planet. The technology and wealth we enjoy in North America is a very new development in history, and I think we miss the challenges of day-to-day survival in our comparatively easy modern lives. Some people will even create problems if they have none.