https://fred.stlouisfed.org/series/MPU4910063
The author missed the small peak in productivity around the recession but the main premise of the article stands - productivity growth has hit a wall in recent years.
Your chart shows an increase every single year. Not one data point on that chart shows a decline.
The author is sloppy with his terms but I never claimed that aggregate productivity is decreasing, just growth rate
https://fred.stlouisfed.org/series/MPU4910063
The author missed the small peak in productivity around the recession but the main premise of the article stands - productivity growth has hit a wall in recent years.