This assessment bothers optimists like Joel Mokyr or Erik Brynjolfsson and Andrew McAfee, who do not believe that technological progress has slowed. Instead, they argue that the traditional concept used to measure economic output and growth, gross domestic product, understates that progress.
这一论断让乔尔·莫基（Joel Mokyr） 或者埃里克· 比约诺夫森和安德烈·麦卡菲（Erik Bryjnolfsson &amp;