Recently, we read that early weaning and eating meat propelled the evolution of human intelligence. We had only just got used to that slam dunk case closed when, would you believe it, we remembered that a computer simulation of digital organisms had shown that teamwork propelled human intelligence.
We have heard any number of other theses in the past few years. It raises the question: Is speculating on the origin of human intelligence really a branch of science?
Surely no one objects if people want to develop creative explanations on this subject. But there doesn’t seem to be any discipline in the discipline. And if there were any progress, how would we know? So how can it be a science? Thoughts?