@BillGates: Well said, @MaxCRoser. Being an optimist doesn’t mean you ignore tragedy. https://t.co/GmFeuPGjcN

http://twitter.com/BillGates

Well said, @MaxCRoser. Being an optimist doesn’t mean you ignore tragedy. https://t.co/GmFeuPGjcN

— Bill Gates (@BillGates) November 15, 2018