There is no good reason to be happy about having less people. Most of the earth is empty now due to desert belts, and we almost have the technology for terrafo

There is no good reason to be happy about having less people. Most of the earth is empty now due to desert belts, and we almost have the technology for terraforming them but do not have enough people to need that. Losing people instead is really scary because that will mean we won't have large enough economy to afford large geoengineering projects, and will be caught in runaway effects of permafrost melting without possibility to do anything. There are two things that give me hope that number of people on earth will keep increasing: first is technologies for increasing lifespan, and reproductive age, second is that subcultures that encourage not having children, will die off naturally.