Earlier quoted context omitted.
Starlink seems like a no-brainer at this late date, but I remember thinking "He'll never be able to make money from internet satellites. This has to be some kind of scam. Look what happened to Irridium." Data centers in orbit certainly seem like a pipe dream, but SpaceX certainly has the technology it needs to put them there, and that's a huge competitive advantage (like it was for Starlink) if they do turn out to be…
Star link is not a 'no-brainer' they currently have 9/10 million customers and need 10k star link satelites. One satelite costs 300k and works for 5 years. To this, they need humans operating the space side, the base station, they need base stations etc. It is affected by weather as well. Its not a 'no-brainer' and while space x showed its somehow a business, amazon and others are entering this space now too. So they…
Dropping the cost to launch (replacement sats etc) by continuing to take greater piece of all total space launches along with large step function capacity refinements with each new rocket generation, means they will continue to push the economics in their favor. $300k/sat might not be worth it, but unless there's a number of back to back unmitigated disasters with their new rockets (totally possible given the cost of getting it wrong) launch costs will continue to drop as they iterate. Even in the worst case where starship never works, they can still salvage and continually refine their current proven designs.
That said, I do not trust their IPO valuations at all. I have enormous respect for what SpaceX has accomplished in such a short time span. When the US government deprioritized further space R&D for all launch vehicles and relied entirely on Russian launch vehicles, I honestly thought it was the end of an era of innovation in space in my (current) country. I'm glad I was wrong to some extent, even if it means an over reliance on the private sector to make further progress.
You may point out that private space ventures sadly have similar problems to ceding to foreign nations, and you wouldn't be wrong. The only silver lining for me is getting to see continued progress in my lifetime. It doesn't take all the sting out of government funding drying up for space launch vehicles, especially when our other budgets like defense are so insane, but I'll take it at face value as a victory for humanity to continually improve space capabilities at scale in any form.