Musk: humanity uses less than a trillionth of the Sun's power output
XFreeze · x · 2026-09-27
In a SpaceX technical update, Elon Musk put humanity's place on the Kardashev scale into perspective.
- Harnessing even a millionth of the Sun's power output would require growing civilizational energy use by far more than a million times
- By his math, we currently use much less than a trillionth of the Sun's output
- His conclusion: meaningful progress toward Kardashev II requires going to space, where humanity is "practically nowhere" today
The remarks came as SpaceX presented its capability to manufacture, launch, and operate AI satellites at scale.
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