At times, Elon Musk has to teach/remind people that he is an engineer. Some of the first Falcon 9 rocket motors had X amount of parts. The next engine model had X minus 30% parts. One of SpaceX’s mottos is: the best part is no part.
The rocket engines on the super heavy are 3 times as powerful as the first Falcon engines. AND, there are 33 engines on the super heavy.
One of the main challenges to serious space occupation is moving tonnage into space. When the super heavy becomes reusable, moving tonnage into orbit becomes a reality. Musk/SpaceX plans on refueling in orbit, and elsewhere.
Musk talks about becoming a multi planet species. Eventually, our Sun will expand, and we need to be far enough away to survive.
Each Starship could be its own, small space station. Spin the Starship, and there will be gravity.
One of the larger Mars rovers had a proof-of-concept experiment that tested whether or not we can make oxygen out of the Martian atmosphere. We can. The first humans will have to bring all of the oxygen (tonnage). Eventually, we will make it from the atmosphere.
During President Trump’s first term, SpaceX was testing sometimes once a month. The Hussein/Biden Regime has slowed that down greatly, but success is at hand.
“Eventually, our Sun will expand, and we need to be far enough away to survive.”
I’ll place my bet on Other-Stupid-Things requiring interstellar migration before the sun’s helium expansion in 5 billion years.
That's not the threat. Any influence from that is 1B away if not 4B away. Musk himself has said, the extinction event capacity is two-fold : one, we do it to ourselves, or two, an NEO asteroid slips through our observation fence and destroys most of the carbon-based above-ground cohort with only 1 year lead time of warning.
The double irony is that Musk knows that currently, the only possible way to neutralize the latter scenario, would be his Starship loaded with a specific nuclear charge to force the asteroid .002 off course, given sufficient lead time to produce the nuke and get Starship to the killer, while the course management is still available.