There are gradations. Yes, it might be unreasonable to never get in a situation where hitting a pedestrian is impossible, but it's not unreasonable to expect to never get in a situation where hitting a pedestrian at more than 20mph is impossible. Below 20mph a pedestrian collision is usually non-fatal.
That might mean limiting speed to 30mph or lower in residential area. That is fine.
Just like airplanes and surgery and almost every other dangerous activity, it should be impossible to have a road fatality with only a single failure. Only multi-systems failure should result in a fatality from any form of technology.
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There are gradations. Yes, it might be unreasonable to never get in a situation where hitting a pedestrian is impossible, but it's not unreasonable to expect to never get in a situation where hitting a pedestrian at more than 20mph is impossible. Below 20mph a pedestrian collision is usually non-fatal.
That might mean limiting speed to 30mph or lower in residential area. That is fine.
Just like airplanes and surgery and almost every other dangerous activity, it should be impossible to have a road fatality with only a single failure. Only multi-systems failure should result in a fatality from any form of technology.