The concept that the Earth is overpopulated, and that "convenient technology" is the cause and the solution is rapid "depopulation", is a very dangerous path.

The concept that the Earth is overpopulated, and that "convenient technology" is the cause and the solution is rapid "depopulation", is a very dangerous path. You didn't say that was where you were going, but it appears that's what you are alluding to. There are other answers to the problem of overpopulation and poverty. We have to be careful about the "scarcity mindset". Which can cause a toxic and warped view of the world, that leads to creating even more problems. Technology can very much be an answer, among others. Colonizing Mars because of advancements in space related technologies, can mean plenty of room for growth. Solar, nuclear, and other alternative energy can change the structure and direction of societies. New kinds of birth control, can gradually decrease populations. And the answer isn't always technology. For instance women who go to college and work, are less likely to have children or a relative decrease in children and family size. Being more financially well-off or even rich, doesn't mean an end to human suffering. There is no limit on greed, envy, hate, fear, prejudice, theft, etc... Which can cause conflicts, war, death, and various forms of suffering.