I have a friend who works for Tesla as a factory automation engineer, and just a few years ago he told me a story of Elon working with him 1-1 keeping him up in

I have a friend who works for Tesla as a factory automation engineer, and just a few years ago he told me a story of Elon working with him 1-1 keeping him up in the middling of the night editing car welds. I very much get the impression Elon is a workaholic.