The Bicameral-Mind theorist apparently claimed that before 3,000 years ago all/most people behaved as the article's author, receiving direction and correction f

The Bicameral-Mind theorist apparently claimed that before 3,000 years ago all/most people behaved as the article's author, receiving direction and correction from externally perceived voices. Only at some point around that time did people become meta-aware, conscious of their own thoughts.