We Should Be Looking for Small, Hot Dyson Spheres

If you chart humanity's rising energy use, we'll eventually be using all the solar radiation that falls on Earth, and then all the energy emitted by the Sun - a Dyson sphere (or swarm). A new paper investigates the thermodynamics of Dyson spheres, considering the different trade-offs between the energy received, the amount of computation they could perform, and how they could dissipate their heat. According to the paper, the most efficient use of mass is to create very small, hot Dyson spheres. This will help astronomers search for them across the galaxy.

#dysonspheres

http://arxiv.org/abs/2309.06564

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