There's a rebuke to this argument in the article: > In some sense it doesn’t matter how a galactic civilization gets or uses its power because the second law o

There's a rebuke to this argument in the article: > In some sense it doesn’t matter how a galactic civilization gets or uses its power because the second law of thermodynamics makes energy use hard to hide. They could construct Dyson spheres, they could get power from rotating black holes, they could build giant computer networks in the cold outskirts of galaxies, and all of that would produce waste heat. Wright’s team went right to the peak of the curve for where you’d expect to see any sort of waste heat, and they’re just not seeing anything obvious. In any case their funding came from The Templeton Foundation and all they did was look at existing imagery. Either way, I'd rather live in a world where we looked and didn't find anything than one where we didn't bother looking.