Elon Musk: “I don't think it's more than two to four years beyond that…”

“Let me start with a question. You know a lot about what year does man first set foot on Mars? I think the soonest would be 29. 29? Yes. And I don't think it's more than two to four years beyond that [2029]. And that's not an unmanned, that's a human being putting his foot on the surface. Yes. Best case would be 29. And what do you put the odds of finding either alien life or evidence of alien life?” (01:03–01:08)

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