At the nearest Starbucks they make the coffee way too hot. One way to verify this is to burn yourself with it. A second way is to drop some cream or soy in and see the convection cells form. From the standpoint of physics this is very counter-intuitive, since temperature is usually associated with increases in entropy. High temperature means molecules are colliding in more or less random ways, with no clear discernible trends. However a hexagonal patter of Raleigh-Benard convection cells forms. We see an equilibrium with some order.
Had I been a caveman I would have thought the same about the world. A world full of people who speak no particular language randomly colliding into each other. Only chaos could result. Two people meet, fight, have a baby. I have no idea how this makes the world simpler. However today we have nations and countries and banks.