| ▲ | delichon 2 days ago |
| And a new star will eventually form from the debris, so "renewable" is a function of time scale. |
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| ▲ | direwolf20 2 days ago | parent [-] |
| And after a hundred generations of this there will be no fusible material left. We can extract energy from rotating black holes until they stop, and then the universe is dead. |
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| ▲ | delichon 2 days ago | parent [-] | | So solar energy is renewable over a human lifetime, not renewable over a stellar lifetime, renewable over a stellar formation cycle, not renewable over the lifetime of a universe, and renewable if universes turn out to be cyclical. And all but the first are pendantry in the context of renewable energy conversations. |
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