[hobofan]

> Space X took well-understood rocket engine technology and made it cheaper.

That was one part of their strategy, but the ultimate goal was always to make it cheaper through reuse and not through cheaper production.

> It didn’t try to fight fundamental physics.

Tell that to all the people who claimed that the way SpaceX does the landing of their rockets would never work out because of the "fuel economics", "the way the engine is designed", etc..

Before SpaceX actually achieved it, there were a lot of people out there who doubted that their approach is feasible.

[justapassenger]

Did SpaceX actually proved that their economics work? We do know that they sell them much cheaper than competition, but do we know when/if VC money stopped paying for the difference?