I am intrigued, but why depict the "Tree of Knowledge" as coming into existence over time? I would definitely agree that all of the segments in it have developed over time, but 'mind' (the ability to think), 'social sciences' (thought by indivdual human beings about human being in all its aspects), 'culture' (thought about 'larger' questions), and 'science' (thought based on observation of material existence) have surely existed for as long as human beings have been on Earth. Also, where does our fascinationn with aesthetics fit into the picture? Could I be directed to a particular blog or essay that would answer those quesionts?