What if fusion power never becomes practical? Humanity still has solar, fission, storage, beamed power, and enough known physics to build a spacefaring future.

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Credits:

What If Humanity Never Masters Fusion?

Written, Produced & Narrated by: Isaac Arthur

Graphics from: Jeremy Jozwik, Mafic Studios

Chris Zabriskie, "Unfoldment, Revealment"

Stellardrone, "Red Giant", "Billions and Billions"

Select imagery/video supplied by Getty Images

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