I believe more and more people will escape to lemmy sooner or later, and I already see 3 different communities for the same thing (selfhosted) here on lemmy. Time will tell which one will be the most active, but lets assume all of them will be equally active and the desire emerges to combine the two communities about the same thing, is that something possible or intended to be possible with federated services?
True, but they are all with different names, and they are not completely the same (as in different rules, more specific topic vs general topic, etc). But on Lemmy there is a possibility that two communities having the same exact topic and name for example !technology@beehaw.org and !technology@lemmy.ml, they are both discussing technology (and not any specific difference between them).