If you want to keep a functioning society with trade and manufacturing of basic items, it's probably on the magnitude of millions of people. But if you take out a few key people in chip development or internet security or whatever and nobody else understands it, then whole parts of the infrastructure would default to a lower level. I would say to keep things moving with new research and development, at least a billion people.
Too keep minimum viable genetic diversity is about 200 non related people and if you gave them a big fat library and 3d printers to make whatever they needed, then that's all you need.
grapegeek t1_j7q4kmw wrote
Reply to What's your estimation for the minimum size of global population required for preserving modern civilization with advanced technology and medicine, and even progressing further? by Evgeneey
If you want to keep a functioning society with trade and manufacturing of basic items, it's probably on the magnitude of millions of people. But if you take out a few key people in chip development or internet security or whatever and nobody else understands it, then whole parts of the infrastructure would default to a lower level. I would say to keep things moving with new research and development, at least a billion people.
Too keep minimum viable genetic diversity is about 200 non related people and if you gave them a big fat library and 3d printers to make whatever they needed, then that's all you need.