[reificator]

I try to teach when I'm in a discussion, and I learn a lot from them. Both from trying to teach and from hearing other viewpoints. In fact I tend to actively try to seek out and befriend people who disagree with me, specifically to learn more. It's easy enough for me at least to make friends with a bunch of clones of myself, and while that's not a bad thing I think perspective is important. And you get that from discussing things with people who disagree.

I don't think that teaching vs learning is mutually exclusive, and while intent matters I don't believe you can have a (non-repeat) discussion without learning something.

It kind of frightens me how much emphasis has been put into creating social bubbles where no one disagrees. Especially online where it's so easy to do. (I want to emphasize that I am not criticizing having people around to support you.)