Wow, what's with all the hostility against him.
It's maybe because i also know a bit about lidars that his comment was clear to me ("ha, try putting a vacuum lidar in a car and see if it can do anything useful outside at the speeds & range a car needs").
Is it that much of an issue if someone is a bit snarky when pointing out the false equivalence of "my 500$ vacuum has a lidar, but a tesla doesn't? harharhar".
So someone saying "why does my 500$ vacuum have a lidar but not the car" isn't suggesting that?
I guess in some technical way you're right, but it for sure is the implication...