What a weird call. Especially the callout of the diamler CEO.
Elon says that the diamler CEO does not understand physics "He doesn't know much about physics. I know him. I'd be happy to engage in a physics discussion with him. I actually studied physics in college."
Wiki says otherwise:
"... studied electrical engineering from 1971 to 1976 at the University of Karlsruhe; he graduated as an engineer. He completed his doctorate in engineering in 1982 at the University of Paderborn."