Conditional on humanity reaching Kardashev stage 2, what will be the primary source of energy when it does? | Manifold

Conditional on humanity reaching Kardashev stage 2, what will be the primary source of energy when it does?

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Dyson swarm

3%

Dyson sphere

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Hawking radiation from microsingularities

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I just estimated that there’s no material strong enough for a Dyson sphere at 1au around the sun. (500Gpa/(0.0058m/s^2*2.7g/ml) << 1 au) so you’d have to build it all the way out at >2.5AU Much easier to construct a close-up Dyson swarm and use 1000x less material.

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