I kind of always thought of this phrase was a way to say “we’re not going to see each other’s sides so let’s stop talking about it”, and I think that makes sense IRL when you need to formally close off a discussion, you can’t just walk away from a person.
But yesterday I was disagreeing with someone on a Facebook thread and they made their point and then went “I think we’ll have to disagree on this one.” I think it must have been a variant on the ‘agree to disagree’ but it suddenly jumped out at me how nonsensical a statement is. We don’t need to AGREE to disagree - we already disagree! That doesn’t need to be mutual agreement on that, it’s just a fact. So what is saying that supposed to mean, that I’m not allowed to respond to the point made? Is it a way of trying to get in the last word and stop the other person replying? Or is it a way to ‘exit’ the thread, but if so why not just say you are exiting the thread? Or just not post any more? Is it an ettiquette thing, a phrase that is used before exiting the thread?
Anyway, I thought I’d share my spiral of overthinking because I’d never thought of it before but now I’ve lost all sense of meaning to the phrase!