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Comment on Black Holes as a cooling system for advanced civilisations?parent

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It would be like someone in the Victorian era predicting that we'll farm whales for their oil...

That actually sounds like a pretty cool idea. Would it be possible to keep whales alive on land indefinitely?

They won't be actual whales — we'll use their genetics "or something like that"

No need to keep them on land. Arthur C Clarke's novel 'The Deep Range' had whales being kept in herds, like dairy cows, for their milk. Not implausible at all!

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