The Hermitage was built quite quickly, it was built from 1754 to 1762, but it’s only to build it quickly, it’s not quick to get around it, it’s so huge, here are the official data: it will take 70 years of life to see all the Hermitage exhibits, lingering before every 1 minute …
Here is the first discrepancy: just to create a project for a building like the Hermitage would take decades: approval, contracts, preparation of enterprises, production of forms and equipment, extraction of material, processing, delivery, installation.
A huge number of columns, stone supports, to make the columns used different materials that are mined in different places, under each column its own support. And we are talking about tens or hundreds of multi-ton columns.
Second: in order to build such a building and it does not fall apart, it is necessary to have not only working drawings of elements, load-bearing structures, units and connections, not only architectural and construction drawings, but also strength calculations of load-bearing structures and elements.
Well, according to the official version, the draftsmen "architects" draw beautiful pictures and keep "their" projects in their heads, since there are no documents. At the same time, apparently they know mathematics and geometry well and measure everything by eye.
Third, in order to be able to assemble all these parts without fitting, there had to be a measurement system. There must be a control system. There must be measuring instruments that ensure measurement accuracy to tenths of a mm.
Promotional video:
Fourth: In addition to the measuring system, it would be nice to have a system of tolerances and fits. And it was also necessary to reproduce the drawings and send them to those industries that can manufacture this product.
Fifth: how these columns were delivered, how they were erected, they were raised 30 meters in height.
The bottom line is that we have concrete-brick-metal and wood construction. But not stone. Stone architecture is not our civilization at all.
To grow this out, you need technology, factories, a transport system, research institutes, energy and so on and so forth.