[sanderjd]

This presumes a level of objective truth that is almost never available within the confines of casual conversation. I find the failure mode of a stubborn "truth-seeker" far more obnoxious in most settings than the failure mode of someone saying "huh, that's interesting, I'll have to look into that more" even when they're pretty sure they're right.

[Jach]

"Huh, I'll have to look into that more" (and presumably get back to you) is not agreeing to disagree, though. I suspect 'mordae was making a reference to https://en.wikipedia.org/wiki/Aumann%27s_agreement_theorem