As an outsider, I don't know. There is a presumption that since things have changed over time, they will continue to change. This very well might not be true. I

As an outsider, I don't know. There is a presumption that since things have changed over time, they will continue to change. This very well might not be true. I didn't want to get too Kuhnian, so I just used the word "stagnant" for effect. Once again, as an outsider it doesn't seem to me that they are anywhere near "done", but they sure as heck look like a mature science. Physics and its children have given us amazing things. Spending a lot of time playing with math wasn't one of them. All sciences have one aspect in common: until you get to reproducibility, the conversation in the community tends towards groupthink over time. That's a human characteristic not related to any one field of study.