And decades of experience building up engineering firms from almost nothing. Perhaps I'm in a different environment than you, but I know more than one top-tier engineer that didn't even graduate high school let alone get a 4 year degree in physics.

If someone has a computer science degree but never writes code are they a software engineer?

Why are you under the presumption that he did no domain specific engineering at Tesla and SpaceX? And let's not go in circles and repeat your previous arguments please.

lack of any specific examples?