re: #110 Hecuba’s daughter
Packing people in may be better for the environment; when we spread out, we destroy habitat for the non-human species on the planet, as well as pave over fertile farmland, and increase the use of fossil fuels.
I do think that humans need to minimize their horizontal footprint, but we have plenty of urban areas that are not as dense as San Diego or San Francisco. I also think you can become too dense, because cleanup functions become strained.