You're fucking delusional. Elon Musk is not an engineer, he did not figure out any of that. He does not run SpaceX, Gwynne Shotwell runs SpaceX. If you said any of that to an actual aerospace engineer, they would laugh in your face. Satellite internet network technology, including LEO satellite constellations, has existed since the 90s. Even Tesla he simply bought out and marketed. He gets credit for pushing electric cars into the mainstream a little earlier than they would have, but even with that, Tesla is a poorly run operation that lacks the ability to innovate or improve their product in any measurable way and is quickly being usurped by legacy automakers and new competitors with better products.
He is not smart, in any way, and in fact is demonstrating daily how incredibly dumb he is to the entire world with his antics post-Twitter acquisition.