According to Jaynes and others, there was early speech but reflection and consciousness were so underdeveloped due to the state of the brain that explanations for auditory hallucinations coud not be articulated so they were perceived as being god talking to our ancestors. They haven't claimed man couldn't speak, just provided a set of theories about underdeveloped speech and its relationship to simplistic views of there being a higher power that was governing their experiences.
Sorry if I didn't explain very well. I only remembered the bicameral mind when Greatnan mentioned speech development and social cooperation.
respite from England football team this coming early Monday morning?
*International Plastic Bag Free Day* tomorrow July 3rd



