[underwater]

"I expected the Tesla to ‘see’ it and stop, however I had to take my finger off the (app) button when I saw that my Tesla wasn’t slowing down,”

Your car is not a fucking toy. He could have injured the occupants of the other car while he watched and filmed because he wanted to play with a cool feature without first learning how it works.

If you don't know what's going to happen, don't assume your automated car knows how to avoid a collision.