For comparison there’s still 300,000 Wild West African Gorilla today and they’re extremely restricted in range, share that range with modern humans, etc.
Human populations in prehistory were believed to average somewhere in the 1-15 million range which puts 10B at the very low end estimate with 100+ billion being considered plausible. There was at least one major bottleneck but humans predate the last ice age.
PS: Calling anything history before we have any surviving text to work with is also a stretch.
For comparison there’s still 300,000 Wild West African Gorilla today and they’re extremely restricted in range, share that range with modern humans, etc.
Human populations in prehistory were believed to average somewhere in the 1-15 million range which puts 10B at the very low end estimate with 100+ billion being considered plausible. There was at least one major bottleneck but humans predate the last ice age.
PS: Calling anything history before we have any surviving text to work with is also a stretch.