Comment by pedrocr

I can see it being possible to "average out" the mortality of self-driving cars when you consider how high road mortality is. But they won't be the same deaths, some would be things a human driver would avoid. We generally define the safety requirements of self-driving cars as being close to airliner reliability but also generally accept that roads, cars and drivers have much lower standards than that right now. So in this environment we can very soon be stuck in an uncanny valley where self-driving cars would already be a net positive in reducing road fatalities but at a level that is still generally considered unacceptable.