I guess the question I’ve always wondered is…..What suddenly changed that gave our ancient human ancestor the ability to start progressing intellectually that wasn’t capable of happening to any other animal….If we keep moving back in time, we as a specie decline in intelligence and brain capacity…. Where was the point in time that our brains diverged and started getting progressively smarter and what caused it??....Why were WE the only animal that benefited from whatever this event or change might have been?.....To me that would be the moment we became human and what separated us from all of the other animals…..the biting of the apple