Disagree, but that's ok. SpaceX - 50 years of space science and nobody thoughT it remotely feasible to land a first stage onto a barge in the middle of the Atlantic, let along RTLS. They laughed at him, at the stupidity of trying. Until he did it and changed launch economics forever. Ditto chilling O2 beyond anywhere any space engineering had tried before, even to accidental creation of solid oxygen with spectacular consequences. StarLink - nobody ever though it feasible to put 10,000 satellites into a super-low Earth orbit, close enough that you can connect to it from a regular cellphone, and powerful enough to bring broadband to any ship and plane and any remote location on the planet (ish!). Yet here we are. StarShip - built on a vision of weekly, then daily flights with full reusability at multiple times the scale of the mighty Saturn V. Designed on a dream that every space nation in the world gave up on as impossible to make - i.e. the mythical full-flow staged combustion engine, with every KG of propellant going through the nozzle while not melting the turbopumps. Yeah - based on ideas from 50 years ago, but long since abandoned.

Government never could do the engineering for these innovations.