Mercurius
Legend
That is one of the biggest problems with the English language today is that it has no structure and words have no meaning, because the meanings are changed constantly. Very few have an actual meaning left to them.
From one angle its a problem, from another it is a feature, with some interesting (if problematic) possibilities.
Look, words are malleable. If you look in the dictionary, most English words have multiple meanings, depending upon not only context but how one is choosing to use the word. If we can accept this, then communication becomes more of an art than a mathematical formula. If that is unacceptable then I suppose you could learn Latin

One can be happy that they like D&D, while another is happy that they also like D&D, if that is what you are striving for. The problem then lies when they start to relate those experiences and share them with others and the differing experiences come to head with each other.
Which is one of the reasons that I'm advocating this approach: it creates a common ground to which everyone is invited.
Now this doesn't mean that D&D is a jar of pickles or Vampire: The Masquerade. D&D is still D&D, but there is a distinct "signature" to the game of D&D, a feeling, a vibe, a gestalt of qualities, what I like to summarize as an experience.
If we can talk about editions as different roads to get to our own personal version of the D&D experience--that is itself part of a larger, archetypal D&D experience--then we take a step away from edition wars. We don't need to say that 4E isn't D&D to me; we can say 4E isn't a road that gets me to my version of the D&D experience.
At the least I think this idea is a way to discuss this issue to better understand what we are all getting at, and even open the door to a larger (and more interesting) conversation as to what exactly the D&D experience is. I mean, WTF is D&D, anyways?!

I'm sorry, but this all sounds unhelpfully nebulous to me.
This definition of D&D Experience is, essentially, so broad that you're having it if you're playing something with the D&D masthead...
Which I'm not with 4Ed, which some DO with 4Ed or even non-D&D games.
For me (continuing your analogy), 4Ed is the Eastern Roman Empire (a.k.a. Byzantium; capital, Constantinople). IOW, not very Roman at all. I don't feel any connection to Rome except in the most trivial fashion; Roman in name only.
Where is my shared experience beyond the name of the game?
Maybe if you stepped back for a moment and realized that we're not in a court of law

So I think you are saying that 4E doesn't take you to Rome, which is your experience of "the" D&D Experience.
Let me put it slightly differently. Let's say that a certain kind of music gives you what we could call "musical bliss". A different kind of music gives me musical bliss. If I say that your music is not musical bliss I am making a category error; your music cannot possibly be musical bliss, it can only lead one to it. The bliss itself is an internal experience, something very personal although also universal in that just about anyone can experience it.
My idea reframes this notion so that we stop confusing different types of music with the bliss experience that it may or may not invoke. To say that the Rolling Stones aren't musical bliss is wrong in this framework because it is a category error, like saying Lamborghinis are not the high you experience from driving fast. Lambhorginis are a thing, the high is an experience.
Specific versions of D&D are things, but they aren't the experience of D&D. I'm asking that we at least consider reframing our notion of what D&D is into primarily an experience. Sure, we can talk about it as a game with different editions, tropes, etc, but I'm saying that a kind of "uber-definition", one that is more primary to any other, is as an experience.
Well, you see, that's the basic thing: either we already know this, and we squabble anyway, or we don't accept the posit that there is no, "One True Way".
You can try, of course. But if the problematic folks were open to alternate definitions, they'd have resolved their differences ages ago.
What, are you trying to burst my balloon, Umbran?

If we narrow the definiton so that Rome is D&D, then we have to contend with what people consider a "D&D" experience.
I just don't see that we're getting to some place where we aren't already there.
"Rome" is a sliding definition, it depends upon the context and in this context it is the D&D experience. What people consider the D&D experience is up to them, but as I have been saying it is both individual and universal.