> Rocketry is a solved problem - the basic math works, we've done it before, the challenge now is building upon that knowledge This is not true. The only thing

> Rocketry is a solved problem - the basic math works, we've done it before, the challenge now is building upon that knowledge This is not true. The only thing that enabled the reusability of SpaceX rockets was the convexification of the soft landing problem, a novelty by Lars Blackmore. Sure, you could argue the the model predictive control scaffolding was pre-existing, but so was linear algebra for self driving.