It's impossible to capture and recycle all waste heat. It's an inevitable consequence of the second law of thermodynamics. Life, an anomalously low-entropy stat

It's impossible to capture and recycle all waste heat. It's an inevitable consequence of the second law of thermodynamics. Life, an anomalously low-entropy state, must survive by dumping its entropy somewhere else. Relatedly: stealth as shown in The Expanse is impossible. https://www.forbes.com/sites/chadorzel/2015/12/22/the-expanse-and-the-physics-of-stealth-in-space/ https://www.forbes.com/sites/chadorzel/2015/12/22/the-expans... (the article also tackles Dyson spheres)