[StopTheWorld]

> Hunter gatherer tribes

Hunter gatherer bands. There's no evidence of any tribes 20,000 years ago.

> Unless you are arguing semantics, yes there were. Tribes and tribal violence.

There is no evidence of any tribes existing 47,000 years ago. Insofar as tribes, and tribal violence, the OP mentioned them, which is wrong in that time frame, semantics or not.

[keepamovin]

Well this spawned a very lengthy multi day discussion! Hahaha! :)