The Cognitive Revolution and the Revolutionary Nature of Sapiens Language

Key Insight

The Cognitive Revolution, spanning roughly from 70000 to 30000 years ago, marked a dramatic leap in Homo sapiens' capabilities. Prior to this period, archaic Sapiens in East Africa, despite having modern appearance and brain size, did not exhibit significant advantages over other human species, and an early migration to the Levant ended in retreat. Scholars hypothesize that accidental genetic mutations, dubbed the 'Tree of Knowledge mutation,' rewired Sapiens' brains, enabling unprecedented thought patterns and a fundamentally new type of language, driving their global expansion and the extinction of other human species.

Sapiens' language possesses extraordinary suppleness, allowing the combination of a limited set of sounds and signs into an infinite number of sentences, each conveying a distinct meaning. This enabled the transmission of vast quantities of complex information about the surrounding world. For instance, a modern human could describe the precise location of a lion tracking bison near a river, detailing paths and allowing a group to collectively strategize on whether to approach and hunt, a level of detail far beyond the simple alarm calls of other animal languages.

The truly unique feature of Sapiens language is its capacity to transmit information about things that do not exist at all—fictions like legends, myths, gods, and religions. This ability to collectively imagine and believe in shared myths is paramount for enabling flexible cooperation among large numbers of strangers. Unlike ants or bees that cooperate rigidly with relatives, or chimpanzees that cooperate flexibly only within small, intimately known groups, Sapiens can coordinate actions with countless unknown individuals, a critical factor in their global dominance.