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It’s like knowing where everything in front of you is without having to touch or hear it. Sight works with your other senses too. For example, if a pillow is laying on the floor in an unfamiliar room I’ll know what shape it, how far away it is, and that if I pick it up it’ll feel soft. If the pillow was really gross looking I’d be able to tell without smelling it first.
I don’t see why not. Lots of new cars have these features built in.