If they can make progress on that kind of timeline, why wouldn’t someone else be able to?

Also keep in mind, it takes a while to get a whole constellation up in orbit and get all the kinks worked out, Starlink was first usable in 2020. So in total it took them in the area of 14 years from start to finish. It’s also worth noting, that nobody in the space industry has really ever been able to move as fast as spaceX, they’re something of an anomaly.

So could a new company do it in 14 years? Yeah, that’s definitely possible. It could happen by 2039, but I wouldn’t put money on it. 25 years seems more likely.