3 ms·

Then you can of course barter, but where do you think most human interactions happened during that time? Inside small groups of people that trust each other or

Then you can of course barter, but where do you think most human interactions happened during that time? Inside small groups of people that trust each other or between different groups that doesn't?

TeMPOraL 7y ago
Obviously the former, but I imagine the groups quickly split as the population grew, and met further groups as they expanded.