Elon Musk is the chief engineer of SpaceX. If you don't believe this, I'm not sure what to tell you. It's extremely well documented. https://erik-engheim.medium

Elon Musk is the chief engineer of SpaceX. If you don't believe this, I'm not sure what to tell you. It's extremely well documented. https://erik-engheim.medium.com/is-elon-musk-just-a-sales-guy-9d3eb7a1b49c https://erik-engheim.medium.com/is-elon-musk-just-a-sales-gu... You can watch the playlist linked above to verify this for yourself. Tim Dodd asks Elon deeply technical questions about Starship and Elon explains the design rationale and tradeoffs behind each of them. In one of the videos Elon walks around Super Heavy booster with Joe Petrzelka, Head of Booster Engineering at SpaceX, and they take turns explaining the technical details of how the ship works.