Continued thread
Here's Chris Knight's key article on #ritual/speech coevolution as matrix and scaffold of #trust across #speech #communites. In 1998 he posited 130,000 years, and today it needs pushing back, coinciding with our process of speciation. At least the Chomsky crew here are conceding earlier dates for the critical transition to #language (they used to argue it was in the region 50-70,000 years wgo, which is now looking dumb).