Then you’d already know the answer to your question, right? Thread over?
This is what I was trying to get across to you in my earlier post. It seems that behind these questions is the assumption that because Alexandria and Rome were in communion at one point, that means they always had the same traditions. They never did, and that certainly predates Chalcedon (or else Pope Leo I of Rome would not have written to Pope Dioscoros six years prior to that council to urge him that Alexandria should adopt Roman practices that had never developed in Alexandria). So this talk about who “screwed up” is strange…nobody screwed up. They were different to begin with. Particular churches had different traditions while they were all still in communion. They didn’t all have one tradition which then the others began to degrade. As early as the Council of Nicaea (and undoubtedly earlier, though Nicaea is a milestone) we read in the canons of different customs of Egypt, Libya, and Pentapolis, as well as of Antioch, which had parallels with those of Rome but were not the same. Likewise, an example could be made of the Armenians, who remained in communion with the rest of the Church for some time after the Council of Constantinople despite never having adopted its revised Nicaeo-Constantinopolitan Creed (as they had their own, traced to St. Epiphanius if memory serves). You can’t look to the Armenians and tell them they “screwed up” in having changed a creed they never adopted in the first place (read: so they didn’t really change it, but it looks that way if you assume that every church should have the same tradition so long as they are in communion). Do you see where I’m coming from? Even if RCs in this thread will tell you that we screwed up in not accepting the Tome of Leo/Chalcedon (which would not surprise me in the least; what else would they say?),
tradition didn’t fail us. In fact, the more common explanation or recap of what went wrong there, at least that I’ve seen lately on this board from RCs looking to emphasize what unites us rather than what divides us (and bravo to all of them for that), is that we couldn’t agree to it because
our tradition doesn’t match what our Fathers read in the Tome of Leo. So it is by upholding that tradition that all of this even happened in the first place. Now I suppose you could ask yourself how a tradition which was already present before the Tome could be said to “fail” because it wasn’t in keeping with a document produced
later by someone from a
different tradition, but that’s so wacky I’m not even going to go there…
Alike in certain basics, sure, but it takes more than agreeing that the sky is blue and that water is wet to commune in or with the Orthodox Church. Perhaps some day we will get there (and I hope we do, though I certainly won’t be alive to see it), but there are many things to be worked out beforehand if that’s ever going to happen. And that’s a topic for another thread (or five, or ten, or six hundred).