There’s a lot of ways to quibble with Hanson’s example, but his larger point is that changes in how

There’s a lot of ways to quibble with Hanson’s example, but his larger point is that changes in how we live in the West, our values, are no longer governed by selective pressures. In ancient times, cultures pushed right up against each other. They competed with each other for resources. They competed for productivity. They also competed with disease, which was always looking for a reason to kill them.