Another thing which helps is to not just automatically have an opinion on everything, even if somewhat informed.
It's ok to say "I don't know, this is very complex, even if I spent many hours reading about this matter". Too many rationalists just go with the option which seems a bit more plausible and then behave as if they have near certainty.
So much this! But there is way too much emphasis on opinions, when frankly, unless someone is deeply invested in the given topic, it is likely worthless. And unfortunately, the less knowledgeable someone is, the more likely he/she has a very strong and vocal opinion on the topic.
