On: SpaceX installed 29 Raptor engines on a Super Heav...

[jonahbenton]

On what timescale, at what level of capital investment?

[kamkazemoose → jonahbenton]

In a little over 100 years we've gone from the first powered flight to flying a helicopter on Mars. We might not be mining asteroids in 5 years but it isn't unreasonable to think it could happen in our lifetimes.

[afterburner → jonahbenton]

Hundreds of years, government-level investment.