I’ve been doing some thinking on this topic because any origins model that places Adam and Eve in Africa anywhere between 130,000-200,000 years ago (as per RTB and some evolutionary models) has them living at what seems to be a very early time in the cultural and behavioural development of homo sapiens. I suppose this depends on whether one thinks that modern anatomy and behaviour emerged together (as I believe RTB does) or whether modern anatomy existed for a long period before modern behaviour gradually appeared (around 50,000 years ago I think is where proponents of this view might agree. Denis Alexander has a pretty good discussion in his book).
For Adam and Eve to have had a relationship with God they would have had to possess the capacity for language, symbolism, and understanding things such as the concept of God, moral responsibility, sin, evil etc. It seems unlikely to me (in the reading I have done) that at 130,000-180,000 years ago they would have had this ability.
Anyway, has anyone got any thoughts on this? Particularly which view of the emergence of modern behaviour is favoured by the scientific evidence, and also when the best date for the emergence of religious behaviour is?