Yes. The profit motive and fierce competition will push SpaceX to solve the Mars landing; division of labor and scale make it plausible by 2030.
Yes. I'd add: science should be guided by people's welfare and safety, not profit alone; curiosity and ethics keep breakthroughs lasting.
Yes. Beyond profit, natural selection favors trial, error, and gradual refinement; space tech grows through small, collaborative improvements, not lone leaps.
Yes, profit and competition spark breakthroughs, but true momentum comes from elegant, focused design and a relentless obsession with people, even for Mars.
