3 ms·

Search Of 100,000 Nearby Galaxies For Waste Heat Signatures Of Large Civilizations Finds Nothing: https://phys.org/news/2015-04-advanced-civilizations-earth-ob

• K0SM0S 7y ago
  Thank you for furthering my point. The base assumption of this study is: > “if an entire galaxy had been colonized by an advanced spacefaring civilization, the energy produced by that civilization's technologies would be detectable in mid-infrared wavelengths” Requiring galaxy-spanning civilizations who love to advertise themselves from afar is a bit of a narrow path to victory. 100 K galaxies is about one millionth of our observable universe (which is possibly itself just a tiny fraction of the whole). So while this could have found something, provided all assumptions held true, that it found nothing is hardly representative nor conclusive of anything. It wouldn't have detected a billion thriving Kardashiev-2 civilizations and 'below', and that's ruling out a lot of life (actually, 100% of what we know to exist). It also assumes that Kardashiev is a valid representation of a civilization's advancement — in all likelihood, that measure is quite far from the whole picture. Again, I commend the effort and welcome more, ever more, but let's not jump to conclusions.