"Consider Robert Solow's Productivity Paradox. "You can see the computer age everywhere except in the productivity statistics."  <a href=""https://en.wikipedia.org/wiki/Productivity_paradox"">https://en.wikipedia.org/wiki/Productivity_paradox</a>  See also "Artificial Intelligence and the Modern Productivity Paradox: A Clash of Expectations and Statistics" <a href=""https://www.nber.org/papers/w24001"">https://www.nber.org/papers/w24001</a>",(reply>), @Mr_Hassell What?? You never heard of Robert Solow??!!,(reply>), What?? You can clearly see it in the productivity statistics.