Holger Isenberg Wrote:
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> The similar loose gravel-like soft limestone layer
> is today still visible at Giza, for example when
> you walk through the entrance gate, then right and
> behind the toilet house. Here a panorama image:
> [goo.gl]
>

That's not a "loose layer." That's an "abused layer." That area has been dug up and pounded and stuff brought in and modified for thousands of years -- and there's alluvial deposits mixed in. There are nine different layers there (and that doesn't include the deeper bedrock)
[www.researchgate.net]


> There are 3 main natural layers of limestone at
> Giza: On top a thin hard layer where the pyramids
> stand on, then a several meter thick soft layer,
> and then a hard layer again.

Nine layers.

Also... if they're "pouring" the blocks (which they weren't), why didn't they use this on the other pyramids at Giza, including the smaller ones? And why didn't they use it for the temples and so forth? Why do the blocks in the GP look like the blocks in the other pyramids?

But most of all, why weren't they using it elsewhere since this was a very active building period? If it turned out to be a bad idea, they'd have abandoned it shortly after starting it. If it was a wonderful idea, they would have done this process with other monuments and continued to do it throughout Egypt's history. It could not have been a secret process, not with thousands of people involved.

And other pharaohs would have had access to the technology -- which would then have been stolen by other civilizations.

-- Byrd
Moderator, Hall of Ma'at