It works "at scale" if you have no idea what "at scale" actually means and have never left the Bay Area or NYC. Or if you like, don't believe weather exists.
Okay, but do you admit it (self-driving, either Tesla or Waymo) works in the Bay Area? Because the OP said self-driving is not remotely working "at any scale".
Okay, but do you admit it (self-driving, either Tesla or Waymo) works in the Bay Area? Because the OP said self-driving is not remotely working "at any scale".