Simple answers are so satisfying: Green jobs will fix the economy. Stimulus will create jobs. Charity helps people more than commerce. Everyone should vote. Well, all those instinctive solutions are wrong. It's a problem that in our complex, extended economy, we rely on instincts developed during our ancestors' existence in small bands. In those old days, everyone knew everyone else, so affairs could be micromanaged. Today, we live in a global economy where strangers deal with each other. The rules need to be different. You might think people have begun to understand this, writes John Stossel. But whenever a crisis hits, the natural instinct is to say, "Government must do something."