Earlier quoted context omitted.
Counterpoint: exceedingly few tech entrepreneurship companies are doing anything at all that is really new and "radically different". Most are doing rather small and unimaginative things that make money by doing some equivalent of selling more ads. If the GP commenter was working at, for example, SpaceX (a large aerospace company), I can 100% guarantee their work would be more meaningful and rewarding than at basical…
I 100% get where you're coming from, but allow me to offer a counterpoint to your counterpoint. I don't know anyone who works at SpaceX, but a bunch of my classmates went to work for ULA (their competitor). I imagine that SpaceX is better managed, but the nature of work is the same - you're either calculating things using conventional wisdom, or you're writing simulations or coming up with other ways to achieve highe…
Elon Musk comes from the start-up world and he is hoping to get to Mars himself, so he is in a hurry. I would say if you can get a job there, you should. If you have not already, check out reddit/r/spacex for lots of interesting stuff about the company and what they are doing. You might want to apply to work there if you are looking for a fast paced aerospace company.
There is also the startup called Boom that is working on building a supersonic passenger plane. They have just finished a smaller human-piloted supersonic test plane to prove out their ideas and hope to have the commercial airplane in service by 2025.
These companies are both run by people that started in software and then moved to aerospace without any other real prior experience in the field. Maybe you can have a similar route with founding a successful software company and then, with that success, found an aerospace one of your own. Good luck.