Where does this kind of thinking lead us? Should we not be even more proactive, then, and start reducing our population as fast as possible to avert the catastr

Where does this kind of thinking lead us? Should we not be even more proactive, then, and start reducing our population as fast as possible to avert the catastrophe that you predict? If less is more, and time is running out, will you live by your own belief, and volunteer for euthanasia? To save the planet, for our children, and our children's children? Every generation has it's soothsayers that are absolutely certain we are near the population limit and heading for certain doom. And every one of them was wrong. Our population soared past those limits, no problem. I share the opinion that earth can sustain about 100B of us, with a bit of planning and thoughtful engineering. So long as most people don't mind living in sky scrapers. More people = more brains to solve the type of problems that I assume you are worried about. I don't actually believe we will continue growing like we have, as nothing in human affairs follows a strait line for long. Every great kingdom has fallen, every empire divided. It is ebb and flow, tidal gravity. We don't need to try and control it, but only observe and adapt to it.