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