This is interesting to me ... how exactly is this assessed ...?

Do people keep around versions of “alpha go year 2017” and play against it in order to measure human improvement over time?

If the basis for observing improvement has become “I can beat old versions of the ai more reliably than I used to be able to” or if I have learned to beat players who have not studied alpha zero I suppose that’s a form of usefully learning “about go” by analyzing the games played by alpha zero ...

I wonder if we might ever arrive at a point where human vs fixed-year x ai performance at go pretty much stops increasing over time ...?