Elon Musk has repeatedly stated that humanity must become a multi-planetary species and aims to build a self-sustaining colony on Mars through SpaceX’s Starship program. He believes expanding beyond Earth could protect civilization from extinction-level events.

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Jeff Bezos, on the other hand, argues that Mars should not be treated as a backup for Earth. He has said there is “no Plan B” and that Earth is “the good one” – urging society to protect the planet while moving heavy industry into space to preserve the environment.

Both tech leaders agree humanity should expand into space, but strongly disagree on whether Mars is an escape strategy or a long-term extension of life beyond Earth