That's an interesting perspective, which I've seen a bit, but I think I've experienced the opposite as well, and I wonder how common it is. If everyone has shar

That's an interesting perspective, which I've seen a bit, but I think I've experienced the opposite as well, and I wonder how common it is. If everyone has shared basis of reference for something, then you can move on and talk about other new things! For instance, most of my friend group watched CGP Grey for a while, and we don't debate how to choose a movie or restaurant anymore, we just choose one quickly via either approval or veto voting. Or online someone mentioned XKCD 927 and then we can discuss the finer points of the new standard instead of just how it's going to replace all the others (for instance, instead of saying Matrix is just the chat protocol to unite everything else, talk about how it's an eventually consistent graph replication protocol and how that differs from XMPP's point-to-point system). It feels like this shared culture and background can serve the same purpose as like shared education in math, literature, and history - to provide ground knowledge and references as a jumping off point to discuss more in depth, or with more nuance.