Don't forget, sometimes you don't see certain things because they have been eliminated, and a natural reaction might be to assume that they never existed. The idea that disagreements occur in professional environments I don't think is very controversial on HN, but what I seem to be hearing today is that HN believes that these disagreements do not occur in the field of science. There is certainly a very long history of disagreement in science, it is one of the primary strengths of the scientific method. And yet now, it has disappeared? That would certainly appear to be the case, all I'm saying is, I doubt that is the actual reality.