::::::::::Tetras, I agree that the POV may be overstated as far as describing science the way it does in the article. The classification approach that you mentioned (grouping science based on their content and approach) does not seem particularly controversial and is widely practiced in academia. I don't think we have to be strict or in depth about it. We can be descriptive about how they are grouped. The natural and social sciences articles do this very well anyway, and so duplicacy can be minimized.