Earlier quoted context omitted.
The way I see it, the problem with social media is that you surround yourself with like-minded people, which diminishes your tolerance to different views. People become self righteous and can't take criticism lightly. Compare this to how things were 15 years ago, or how they are in here, where everyone and their dog can challenge your opinion. You become more open minded long term, and can handle criticism in a more…
Except for the people who simply downvote and never explain their position. Plenty of them on here.
But then switch over to a different thread where the topic of discussion is not some abstract idea like this, but rather an object level idea, say just for example a news story about conservative leaning people switching to a new social media platform to escape what they consider to be censorship, and something very curious occurs. In such threads, it is rare to encounter much talk about this phenomenon of psychological bias, and if it does come up, it is ~always only about the obvious bias suffered by those who are in the ~"general outgroup" of the forum community. In those cases, it is common to read numerous anecdotal observations of how people in the outgroup(s) are cognitively flawed in that they exhibit signs of "living in a bubble", and "just(!) won't listen to reason or consider ideas that are contrary to their worldview".
But then if one is to initiate a conversation with a person in one of these threads, and make a reference to the formerly non-controversial abstract idea (from the psychology thread) that ~all people suffer from some bias, at ~all times, it seems as if all knowledge of that phenomenon has somehow become cognitively inaccessible, that the individual has no knowledge whatsoever of the phenomenon.
Conversely, if one is to mention (say, in a different subthread in the same overall thread) this exact same phenomenon, except switching the object of reference away from the person (who was making a biased comment about their outgroup), over to members of the outgroup, this formerly inaccessible knowledge then becomes accessible once again.
Just for the sake of discussion (a mental experiment of sorts), let us imagine that there is some significant truth to this theory - let's (temporarily) assume(!) it to be True, at least to a significant degree. In this purely hypothetical scenario, might this phenomenon offer some logical explanation for the amount of extreme polarization of opinion that can be witnessed in the world, this "crisis of epistemology" we talk about where different tribes seem to live in completely different realities from each other, with each reality having significantly different sets of facts? To me, this seems not only reasonable, but quite consistent with objectively observable reality.