There was a brief discussion about this the other day after talking about autonomous cars here https://news.ycombinator.com/item?id=15116967 https://news.ycombi

There was a brief discussion about this the other day after talking about autonomous cars here https://news.ycombinator.com/item?id=15116967 https://news.ycombinator.com/item?id=15116967 The biggest key take away I read was the problem with "unions" and the following. > If we had autonomous planes it wouldn't significantly reduce cost or increase usage... Cars have 2 or 3 passengers per drivers while trains often have dozens. Cost per person ratio is different.