[tremorscript]

> Billionaires" are the few people who can afford tackling large projects

I disagree too.

SpaceX? - How much work and knowledge of taxpayer funded NASA did SpaceX reuse.

Carnegie? - Public libraries isn't a project. Public libraries were always there. It was nice of him to create them but it is nowhere close to creating interstate highways or the Channel Tunnel or the Golden Gate Bridge.

[nine_k]

> How much work and knowledge of taxpayer funded NASA did SpaceX reuse.

Judging from the way SpaceX builds, fuels, and flies their rockets and engines, very-very little.

Their contracts with NASA and later DoD did, of course, play a significant role. But I suppose they were chosen on merit.

[tremorscript]

We are all standing on the shoulders of giants. Now I am not a space engineer, but I doubt SpaceX invented a whole new way to reach space.