Something I have been noticing for quite some time now is an increasing tendency for people to seemingly believe they can read other people's minds &/or the future, or that they somehow have an omniscient insight into the world. You might expect this on Facebook or Reddit, and I know this will not please most people here, but it is becoming rather common on HN as well.
To those of you who disagree with me, keep this idea in the back of your mind for a while and remember it as you read comments. Make a serious effort to notice how many people know what other people's motives are for their beliefs, how they know the real reason for certain policy decisions, how they know what Putin or Trump are thinking and what they are going to do in the future, how they know China is going to fail now that they've gone full-on communist dictatorship (because history "guarantees" it), etc.
I honestly don't think I am imagining this, I think something very historically significant is happening to the psychology of the public.