If you look back historically as industrialization took place birth rates plummeted. So far this as been true in every culture that has industrialized. The indu

If you look back historically as industrialization took place birth rates plummeted. So far this as been true in every culture that has industrialized. The industrial revolution is ongoing and much of the world will be "modern" within a few decades. Not only that, there is evidence birth rates fell when regions were conquered or captured by the Romans and Greeks. Birth rates fell during the end of golden ages in China, I believe birth rates fell during the renaissance. I believe there is some limiting factor in humans. We paradoxically make more children during bad times and stop producing them when times are good. We wouldn't be alone, crickets have genes that respond to cricket population levels, changing behavior, I think we have something similar. Also lots of environmental stuff is messing with fertility, plastics, etc.