I strongly agree that the predictive and planning ability is very important - things like agriculture rely on it and must be selective at that point. But the p

I strongly agree that the predictive and planning ability is very important - things like agriculture rely on it and must be selective at that point. But the point has previously been made else humans developed large brains long (1.5M years?) before agriculture, and for a long time the only benefit seemed to be fire and flint tools. It's not widely understood the causal link here - there are other species that have large brains but haven't developed these skills. So it's not clear exactly what facets of intelligence are selected for.