> Designers use tecture not just for grip but to help communicate things to the driver. There's many subtler ones, but the most obvious one is the grooves you often find on the edge of highways that are used to warn you if you're veering off.

This is a red herring. None of these feedback mechanisms existed for decades of driving. The core problem of driving is vision and everything else is just gravy. If lidar can't solve all of the vision issues, which it can't, then it makes perfect sense to ask whether vision can cover lidar's purposes and thus whether having both is actually useful. Focusing on lidar is ignoring the core issue.

▲ godelski 3 days ago | parent [-]

  > This is a red herring. None of these feedback mechanisms existed for decades of driving

Sorry, I want to make sure I understand you correctly.

Are you claiming humans didn't have the sense of sound nor the sense of touch until relatively recently?

Or are you claiming that as soon as someone enters a car these senses go away?

Are you arguing you can't hear things while in a car? Windows up? Windows down? In an open car like a convertible, jeep, or a model T?

Are you arguing that you don't feel bumps in the road?

Are you arguing you can't tell the difference between driving on asphalt vs concrete?

I think we're done here because you need to get an EKG as soon as possible.

	▲	naasking 2 days ago \| parent [-]
		> Sorry, I want to make sure I understand you correctly. My claim was pretty obviously about intentional multisensory feedback design of roads. > I think we're done here because you need to get an EKG as soon as possible. You're right, we are done because you seemingly can't understand the incredibly simple point that you can drive if you lack all other senses except sight, but you cannot drive if you have all of your other senses except sight, and that this means something pretty critical about the importance of sight over all other senses.