RT @wef: Why you're probably too pessimistic https://t.co/dx5KOOp5L1 https://t.co/Z83MvAQ0un

RT @wef: Why you're probably too pessimistic https://t.co/dx5KOOp5L1 https://t.co/Z83MvAQ0un (http://twitter.com/muhamadiqbaldar/status/941603432661598208)