I was watching the SGD channel (
link) on YT again, and he provides a great link to an interesting channel called Night Scarab (
link).
This channel very recently made an excellent video (see below) and rebuttal on the recent videos made by UnchartedX (
link but do not click)
Because it is such a well made video that raises all issues point by point, I recommend you view this video in its entirety. But below is an overview of the content.

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01:33 Provenance
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05:01 Art dealer
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06:24 Metrology
Orientation of the handles, not in line:
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09:01 Math fallacies
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19:41 Lathe masters
Some techniques, not Egyptian, but it shows that methods that could have been used.
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24:11 Hard to make today?
Straight answer: not at all, and can even be cheap.
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27:52 Polishing is not precision
Very important note the video makes is that polishing is not per se precise.
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31:26 Is forgery viable?
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39:58 How it could've been done
The video raises the question weather or not the vases could have been from a much more recent time, as the provided provenance by UnchartedX team is very weak and unproven (no base, no evidence).
From 9 minutes onwards, it very interestingly discusses the statistical trickery that is at play here, and shows that ratios in smaller objects are very easy to link to mathematical constants.
Then the video goes into detail on the way it could have been done, using contemporary materials and methods, and also demystifies the talk that Ben is going on about all the time.
Anyway, watch the video if you can, as it explains much better and much more than I did above.
Source: https://youtu.be/O_4SaxVP44g