/sci/ - Science & Math

I always had the impression that people in academically rigorous fields like Math, Physics, etc..generally held informed/nuanced opinions on even subject matters outside their field. But the more interact with them the more I realise the very few are genuinely like that. The rest generally hold retarded opinions on everything ranging from econ to history(although they like to talk like they're the authority on the matter). I'm not talking about some bums from lower tier unis. A Math Phd (from a fairly well known uni in Europe) now stalks me on my social media because he got BTFO on a history related topic. He was a maoist btw. Like how the fuck does this happen? Can your biases and base instincts override the logical part of your brain that easily?