[pxhb]

I think that the article raises some interesting points, with some that I agree with and some that I do not.

I think it would have been helpful for the article to put the 40 years of no progress in perspective. Are we looking for progress on the scale of the theories of relativity and quantum mechanics, and so should we be comparing to the timescales between Newton and Einstein/Schrodinger? How should we think about the rate of progression in a ‘mature’ field such as physics? Should it be linear (big discovery every 40 years), faster (new discoveries are faster due to bootstrapping from other discoveries), or slower (diminishing returns)?