> So pre-digital, no books, publications, photographic prints, scrolls, tablets, or clay etchings we lost to time?

That is already answered in prior post.

> Digital records are far far more long-lived — in the statistical average — than physical.

Obviously that can't be known, simply because the data does not exist yet.

There does not exist any digital data older than a hundred years, let alone a thousand. Will anything digital survive that long? Well, we don't know, come back in a thousand years to see.

So far, the odds are stacked against it. Try to find just some tapes from the 70s to read, and you won't find much. And that's just ~50 years, a blink of an eye in terms of history. Meanwhile my magazine collection and photographs from the 70s are mostly as good as new, as usable today as back then.