Elon+Musk really wants to cover a lot of bases, from a technology products perspective.
https://www.space.com/iss-deorbit-destroy-spacex-vehicle-18-months
https://en.wikipedia.org/wiki/Super_heavy-lift_launch_vehicle#Operational
https://www.technologyreview.com/2024/07/18/1095036/whats-next-for-spacexs-falcon-9
https://en.wikipedia.org/wiki/Lunar_Gateway
https://en.wikipedia.org/wiki/Lunar_Gateway#Structure
https://en.wikipedia.org/wiki/Human_mission_to_Mars#Technological_innovations_and_hurdles
https://www.nextbigfuture.com/tag/spacex