I agree it is almost certainly related. In that a lot of the reporting on rise of productivity that came at the beginning was just as explainable by noise as t

I agree it is almost certainly related. In that a lot of the reporting on rise of productivity that came at the beginning was just as explainable by noise as the current drop is. That is, I can't rule this out. But I would also not bet against reversion to the mean. Such that the actual waterline on productivity is probably not known, just yet.