Some of the most fascinating topics covered this week are Society (How a fight over a haircut brought communities together), Psychology (Surprising value of obvious insights), Business (China's entrepreneurs are wary of its future), and Extreme Sport (Alex Honnold's death-defying free solo). Also, we have a couple of intriguing Technology pieces; 1) Roger McNamee on Facebook; 2) Why Canada is attracting the 'best' people; and 3) What happens when you upload bad music on Spotify