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Comment by triceratops

3 days ago

> Roads are usually lit

Not always. Definitely not all freeways.

> And every car has its own lights for seeing where you are driving

Not always far enough. Especially at freeway speeds on unlit freeways.

So how can humans do it?

If humans don't have lidar but can drive it's an existence proof of the viability of that approach.

  • In addition to vision, humans have proprioception and kinesthesia, hearing, inner ear receptors for balance, a sense of touch, sense of smell. We use all of these sensory inputs when we drive. And even then humans get into lots of accidents.

    Lidar is superhuman vision.

    • How do you use your sense of smell to help you drive? I can't smell anything outside my car thanks to the air filter.

      The real answer is very simple: safe drivers slow down to adapt to poor conditions (including visibility). Lidar might reduce how much it needs to slow down but I don't think it will be eliminated because you can't drive with only lidar.

      2 replies →

  • Humans can't do it safely during a proper blizzard. (Toronto doesn't really get proper blizzards, though).