[Reason077]

In fact, global population will likely peak around 2050, and then start falling, which will be a whole new crisis. People will look back at overpopulation fears and laugh.

A rapid fall in population would be problematic, but a steady state or slow gradual decline would be beneficial - and perhaps environmentally necessary.

Obviously you need to ensure there are enough young people to support and care for the elderly, so population can't be too top-heavy. But improving technology (robots, AI) should reduce the need for labour without compromising living standards.