Elon Musk: “Every two years the planets align and you can transfer to…”

“I think it can be done in 30 years, provided there's an exponential increase in the tonnage to Mars with each successive Mars transfer windows, which is every two years. So Every two years the planets align and you can transfer to Mars. So I think in roughly 15, but maybe as few as 10, but 10 to 15 ish Mars transfer windows.” (44:01–44:06)

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