I didn't learn much.. I guess I held some attention towards the video. To be honest however, I did not learn anything. Not because the guy isn't full of knowledge but the key aspects mainly went in one ear and out the other. But by looking at the equations he stated that the less affluence there was, the greater happiness will come. That was probably the only thing that came to mind. ALSO. That theres two kinds of technology that counts in the equation, both matter.