Risk list

Why are we scared of West Nile Virus more than we're scared of being crushed by a vending machine? We don't have a good sense of perspective when it comes to risks.

On of my friends believes that the problem is that we evolved living in small groups, such that if we knew about only 1000 other humans. Therefore, we could expect anything we hear happening to humans should have at least a 1 / 1000 chance of happening to ourselves. Since our instincts haven't changed since then, we tend to overestimate the impact of small risks, since there are hard-wired parts of our brains telling us nothing we hear about can be less likely than about a 0.1% chance.

Let's compile a list of risks and categorize them by how likely they are to be a serious threat to you, in terms of powers of 10.