You're bikeshedding now. Could Elon Musk hold his own in a conversation with any aerospace engineer? Absolutely. Could he hold his own in a conversation with a process engineer? Absolutely. The guy is super smart, reads voraciously, and has self taught himself many different disciplines. Its not a superpower by the way, you can too. We live in the information age. Study any subject well enough and you can hold your own, too.