At Elon's insistence, Tesla is pursuing camera-only autonomy. That's what might not be possible. If that's not a viable approach, Tesla has also given up the ad

At Elon's insistence, Tesla is pursuing camera-only autonomy. That's what might not be possible. If that's not a viable approach, Tesla has also given up the advantage of 3D LIDAR mapping the environment in which their cars operate and will have to start over, years behind other AV technology.