About that "Tesla FSD" crash...

This is Tesla cam footage of a hardware 4 Model 3 using a pretty recent version of full self-driving on a seemingly very simple straight ahead road with no obstacles whatsoever when suddenly completely out of the blue a sudden veer into the oncoming lane followed by an absolutely massive crash. So what the heck happened here. The poster of the video claims that the steering wheel turned all on its own.He makes it very clear he did not grab it himself, and the car just decided to drive him into the ditch and ...