TheRodinhoods

200 years Explained in 4 minutes

Professor Hans is brilliant.  He gave a longer talk on the same subject on TED.  This is sort of relevant in an oblique sort of way to the discussion on the importance of money that Pankhaj started:

 

If you dont see the video wait a bit or go to the link here:
https://www.youtube.com/watch?v=jbkSRLYSojo