It's also an exotic, scary risk, as opposed to a familiar risk we've come to accept, like the risks of nuclear power versus the risks of fossil fuel power. We'l

It's also an exotic, scary risk, as opposed to a familiar risk we've come to accept, like the risks of nuclear power versus the risks of fossil fuel power. We'll never compare a death from one fairly with a death from the other because one feels extra and the other feels normal. A future in which self-driving cars kill 3,000 people per year in the U.S. sounds unimaginably grotesque to most people, even though that's less than a tenth of the number of people killed by human-driven cars.