Everyone needs to just slow the **** down and chill out.
You mean cycle or walk? Even a car hitting you at 20mph is still going to hurt you somewhat. And what speed is correct, if you miss thing then what you think is too slow may actually be too fast? If you haven't seen someone doesn't always mean you will see them if you are moving even slower.
Sorry, that just stinks of "I'm a good driver and everyone drives too quick which is why accidents happen". And I think the point of this thread is that crashes/accidents happen even if you are a good driver and think you are paying attention. People make mistakes.
And yes, computers driving will be for real - like stopping us from skidding or plowing into the back of a car while on the motorway. Hardly hysterical!
Mind you, about 10 people a day die on the roads. Let not get hysterical, but I do suggest some value should be placed on human life? No?