No, that's not my point. First of all, this is fiction. None of it is "supposed to be ... factually correct". Second, I don't believe JRR Tolkien had in mind some other "actual form of the book" departure from which would require any kind of rationalizing. He was just writing a story with a book in it, and what he wrote was how he imagined the book.
With "supposed to be ... factually correct" I meant within the context of the fiction. In other word, as you said, that Tolkien description matched what he imagined the events, places, items, ... to be. My statement is that his description of the book is an example of things that are incompatible with the historical record for the 10000-4000BC in Europe. Do you agree with this?
The concept of "events actually tak[ing] place in universe" is bizarre to me, considering we're talking about fiction. The reason I've asked for quotes is I'd rather discuss the actual text of the novel than contend with bald assertion about it.
I've seen "in universe" used several times on these boards to refer to the internal 'truth' and/or consistency of fictional work, so I assumed it was clear that by "in universe" I meant within the fiction of the story, not within our actual world.
Maybe it is. I wouldn't know, because I didn't bring it up. My assertion, based on Tolkien's letter, is about the time-period of the novel's setting, not about its conformity to an archaeological model of what material culture may or may not have been present at that time. My general point regarding that is the archaeological record only includes what was there. It doesn't tell us what wasn't there, except by inference.
This was my first post in this thread, I've bolded the last part:
Broadly speaking, Tolkien imagined his stories as part of our world legendary past, but his view of when exactly they fit into this past changed over the years. In the version of the mythology represented in Lost/Unfinished Tales, there were much closer connections to Earth actual history, with direct references to Babylon, Troy and Rome, with the latter invasion of Britain (Tol Eressea) triggering the last great migration of the Elves westward.
These ideas were later abandoned, in favor of pushing the mythology farther back into Earth's past, but this did not significantly alter the cultural, societal, and technological levels represented in the stories, which are definitely well beyond what is attested for real world Neolithic.
This is your reply to that post. I've bolded the first part, but it all seems relevant to me:
I'm not sure what "cultural, societal, and technological levels" you're talking about. Tolkien, as an author, describes very little about these things, so I'd appreciate more specificity about what you think is being represented. This is complicated by the fact that Tolkien's fantasy depicts different peoples at different "levels". The Elves, especially those who came from Valinor, have a very high level of culture influenced by divine tutelage. The men of Gondor have knowledge of engineering and other mental abilities that far exceed those of common men. The activities of these more advanced people's were mainly taking place in areas which are now underwater. Tolkien says very little about the cultural realities of the common folk of Middle-earth with which a valid apples-to-apples comparison could be made with the archaeological record. Then there's the problem that what's "attested" can't possibly be the sum total of everything that has ever existed. There has to be some room for imagination, especially in a fantasy where that's kind of the point.
From the beginning, our discussion has been centered on whether LotR descriptions match the historical record. I said I believed they didn't in my first post, and you asked clarification on that in your reply, while also pointing out while a direct comparison with archeological record would be complicated. And you repeatedly kept engaging with me on this aspect, specifically on whether the examples from the book I and others mentioned conformed with what we know of real cultures from the time.
But to be clear, I was just referring to the exchanges between you and me, not necessarily to your OP or the thread as a whole.
If by "are not compatible with the archaeological record" you mean "couldn't have taken place at that time", then I disagree. While I agree the events of the novel would depend on the existence of writing systems which are posited by the legendarium to have been invented by the Elves in Tirion and Beleriand, places for which there is, of course, no archaeological record, sometime before say 13,600 BC by my reckoning, an absence of recognizable traces of such systems in the archaeological record is not proof that no such systems existed or were in use in Western Europe c. 6600 BC. It's likely there have been at least four independent inventions of writing by humans within the last 6,000 years. It isn't unthinkable to contemplate there may have been earlier inventions sometime in the previous 294,000 years of modern human existence for which we simply lack the evidence.
With the possible exception of mathematics and logic, all human knowledge of our world is empirical. We observe a finite number of events, we notice some patterns in these events, and extrapolate these patterns to some "truths" about our reality. Periodically we find new evidence that leads us to revising these "truths", but until we do our best option is considering our current understanding as the best description of reality, while being open to the possibility that description could change in the future.
So my position would be better defined as: "couldn't have taken place at that time" means "are not compatible with the archaeological record". I agree that we cannot prove that writing was invented few thousand years before what's currently believed. Or the wheel. Or copper smelting. Or horse domestication. And so on. But we are not talking about only one of these things in isolation: all of these things need to have happened way before what's currently attested for the events of LotR to have happened during the time frame Tolkien posited in his letter.
That is clearly not "impossible" in the same way that it is impossible that a prime number also be a square of an integer, it's just that the archeological community doesn't have any remote evidence of something like that happening. You are the one making a pretty bold statement, and your only argument in its support is: "well, we cannot prove that it didn't happen". Which is the same argument in favor of Dragon, Elves and Dwarves having existed, or Neanderthal having landed on the Moon. To be clear, I consider these to be far less likely than (basically) European Neolithic having ended a couple thousand years earlier than we currently think, but this just show that argument by itself is not a very informing.