Tyler Cowen has an ebook that presents his hypothesis that America is undergoing a great stagnation. What he means is that teh rate technological change and economic growth has slowed since about 1973. You can get most of his message from the TEDx talk in the below video.
While Cowen acknowledges the great leaps in communication technology, I feel his presentation glosses over a lot of medical technology which is highly valuable and has continued to improve life expectancy.
He also glosses over a lot of other changes that people value but don't get recorded in the statistics (for example greater equality of genders and races or lower crime rates). The more effort society directs towards these social advances, the less effort it can direct towards technological marvels.
Overall it's a very interesting video for anyone curious about economics and modern history.
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