> This doesn't tell me why specifically SpaceX isn't a viable lean startup idea, nor does it tell me what happens if I go ahead anyway and try to build a lean s

> This doesn't tell me why specifically SpaceX isn't a viable lean startup idea, nor does it tell me what happens if I go ahead anyway and try to build a lean startup around it. Nor does it say specifically what model SpaceX is or isn't using instead. Alright sure. SpaceX would make a bad lean startup because the main hypothesis they were trying to validate is whether it was feasible for a private US company to launch things to space using an affordable system, and the scrappiest possible way to validate that still required tons of effort and burning $100M+.