Air conditioning
For ten thousand years, humanity dug in the dirt. stank, and had bad teeth. Then we invented air conditioning, and less than a century later we have cell phones, jet planes, internet porn, and grocery stores so stuffed with luxury items that you can eat yourself to death while making minimum wage. Without air conditioning, people sat around and sweated miserably, unable to concentrate. With air conditioning, we are able to work all day and be productive. What makes the USA better than countries like Iran and Afghanistan? It’s not a difference in religion, or a difference in philosophy — it’s air conditioning. If you live in the USA, and you have a house, an apartment, or even a car, you have air conditioning. Afghanistan? No air conditioning.
Air conditioning. Think about it.