26 Jul 2016 Bill Gates: America’s Best Days Are Not Behind Us ( Portfolio )

How do you calculate the value of millions of pages of free information at your fingertips? How do you calculate the impact of the entire hospitality industry flipped on its head? In the future, GDP may not grow as fast as it did in the past—or, for all we know, it may—but that alone doesn’t tell you whether people’s lives are going to get better.