There are conflicting evidences, a lack of details, opposing hypotheses held with great confidence, and a wide range of explanatory mechanisms that are routinely used as needed.
Research into human origins, we mean the entire field, is a mess.
Does DNA coding demonstrate that we are here by intent? And is the brain itself enough to produce perceptions, feelings, thoughts and awareness?
You’d likely predict: This will largely be about the timing of our primordial fire use. There will be comparisons with chimps.
Given evolutionary presuppositions, the direction of research and learning is not from lesser to greater clarity, but just the opposite.