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A comment on Carnot Efficient Dyson Spheres Are Undetectable by Infrared Surveys (2016). Parent comment

Re:Carnot Efficient Dyson Spheres Are Undetectable by Infrar... by evgen on Saturday June 10, 2017 @09:08AM (#14527184)
No, because it cannot be 100% efficient. If it were you would have a perpetual motion machine.
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