[fluoridation]

Well, while we're talking sci-fi: personal teleporters.

[HPsquared]

I mean it's happening already, cars are getting safer aren't they? Driver assistance features are gaining adoption. It takes time.

[fluoridation]

I assume by "getting safer" you mean that they're getting safer than they used to be, which, I suppose I agree. I don't know what you therefore think is "happening already", though. I see no indication that autonomous cars will ever be safer than human drivers.