[a-nikolaev]

Dreaming is fine, but Musk has a track record of not delivering on his over-optimistic promises. And a dream is not enough to overpower gravity and the laws of thermodynamics. There are very hard physical limits on how efficient a rocket can be, even in the most optimistic scenarios.

[atonalfreerider]

Last I saw, the roads are full of Teslas and there have been 5 crewed launches to orbit on reflown Falcon boosters.

Without Tesla, the electric car market would probably be farther behind, and without SpaceX we'd definitely still be flying astronauts on Soyuz. These achievements seems routine now, but it's important to take stock of their significance.

[Ekaros]

So we were already flowing astrounauts in with proven technology. What new did SpaceX do in that field?

[cnlevy]

Cryogenic in-orbit refueling is not breaking any physics laws and allows to reset the Tsiolkovsky rocket equation from orbit, so you can gain 2 orders of magnitude on payload weight. The hardest part would be logistics management (10 tanker launches for refueling a Starship)

[mlindner]

Musk has a track record of over-promising and under-delivering both on time and product, but deliver he does. And the over-promise is usually so bonkers ridiculous, that when you scale it back it's only somewhat ridiculous and a lot more than the people who were predicting complete failure.