Ah, ok, so your point was that we really don't know for sure that the pyramids (or, at least, the Kufu one) is as old as we believe, because the dating that has been done is somewhat dubious, and you are hoping it is much older?

My point doesn't really go against this, just that it may be more practical to look at what we already have access to, but is largely not translated.

Also, since we have dated many other Egyptian artefacts, we can assume that the civilisation is that old (but of course, the pyramids could have pre-dated them). If they did find any artefacts with writing in the chamber and it is much older than when we believe the pyramids were built, I wouldn't be surprised if the artefacts contained Akkadian or Sumerian cuneiform anyway ;-)

My point is subtle. We definitely know when the ancient Egyptian civilisation existed, and that has been definitely dated by many coherent methods: carbon dating of artefacts at other sites, historical record, and archeological layers. The issue (which I am perfectly aware merely articulating makes me sound like a kook, but hear me out and know beforehand that I am very skeptical about the likelihood of what I am stating might actually be true) is that we have not got definitive links between the pyramids and the Ancient Egyptian civilisation as we construe it. In most ancient Egyptian texts the pyramids are referred to as being already ancient but claimed to be of their own origin, but in other civilisations (e.g., the ancient Chinese and their claim of the “Yellow Emperor” et al) we have found that civilisations’ own accounts about their origins and claims to being the artificers of grand monuments is not always reliable. What if the pyramids actually predated the ancient Egyptians by millennia, and the ancient Egyptians merely arose later around them, in the same area, and claimed them as their own? There is much pseudoscience in this regard, but certain highly controversial geological observations about the weathering of the Sphinx in particular are particularly telling (in my opinion): it would seem that the prevailing opinion of geologists is that the weathering exhibited on the body of the Sphinx is the product of tens of millennia of water erosion, which is at odds with archeologists’ prevailing opinion is that the erosion “must be” the result of mere millennia of sand erosion, because “we already know” that the Sphinx was built “by the Ancient Egyptians, mere thousands of years before C.E.”. The reasoning is inherently circular, and enrages me. I would very much like to have original artefacts demonstrably linked with the epoch of construction from inside the Pyramids definitely carbon-dated so that this circularity can be once and for all escaped-from. In the end, I fully expect that such independent verification would lead to confirmation that the Pyramids and the Sphinx do indeed date from the early period of the Old Kingdom... but proof would be delightful, and besides, we do other kinds of science (such as running the LHC) in hopes of seeing disagreement with prevailing theories... wouldn't it be amazingly exciting if it turned out that this were not the case? No extraterrestrials... just much deeper human history than we have hitherto fathomed.

I agree, it would be good to prove scientifically instead of relying on fallacious circular reasoning and assumptions, and it would certainly be exciting if it proved that there was more to the story.

My main point was simply that given that the oldest written texts we have are Sumerian cuneiform, it would seem likely that if there were written texts hidden in the pyramids which predates Ancient Egyptian civilisation, it would likely be cuneiform too, although it would be incredible if even older texts were found (and decipherable)! Early-human history is very interesting.

(I am aware that there is older proto-writing than cuneiform, but not complete written texts)

I’d never really entertained the notion that there might be earlier forms of writing, and if they existed, what form they might be expected to take. This is a really fascinating issue. Maybe we’ll find scribbles that resemble Linear-A (https://en.wikipedia.org/wiki/Linear_A) all over the inside of this hidden space. Wouldn’t that be exciting, even if we couldn’t read it?!