Sean Blanda in Medium:
There’s a fun game I like to play in a group of trusted friends called “Controversial Opinion.” The rules are simple: Don’t talk about what was shared during Controversial Opinion afterward and you aren’t allowed to “argue” — only to ask questions about why that person feels that way. Opinions can range from “I think James Bond movies are overrated” to “I think Donald Trump would make a excellent president.”
Usually, someone responds to an opinion with, “Oh my god! I had no idea you were one of those people!” Which is really another way of saying “I thought you were on my team!”
In psychology, the idea that everyone is like us is called the “false-consensus bias.” This bias often manifests itself when we see TV ratings (“Who the hell are all these people that watch NCIS?”) or in politics (“Everyone I know is for stricter gun control! Who are these backwards rubes that disagree?!”) or polls (“Who are these people voting for Ben Carson?”).
Online it means we can be blindsided by the opinions of our friends or, more broadly, America. Over time, this morphs into a subconscious belief that we and our friends are the sane ones and that there’s a crazy “Other Side” that must be laughed at — an Other Side that just doesn’t “get it,” and is clearly not as intelligent as “us.”
More here. [Thanks to Omar Ali.]