Is there somewhere that explains this concept? When I "receive" something, there still must be trust that I correctly mark it so. By that point, doesn't it require trust, and therefore you may as well just use a trusted third party data store?
Yes, s/he clarified it.
"[Edited, 5 Jan 2021, to add: Many people have been confused about the statement about delta, so I must have worded it poorly. I’m not saying delta originated in a lab leak. I’m saying delta escaped from a lab late in 2021 where it was being used in research. It’s an example of a research-related lab leak.]"
This on its own isn't enough to refute OP, since it could very well be that the equivalent cost of one of these other historic buildings is even higher. (e.g. cost of skilled slave labor vs equivalent labor in modern markets, cost of materials, etc)
EDIT: Hmm, even the payer's power could be factored in. A king may be willing to spend 1/10th of his empire's wealth on an extravagant palace, but the same would likely not be approved in a democracy.
Definitely not a _new_ weakness, right? The vast majority of financial wealth is locked up in digital stores, which are even more so in the jurisdiction and immediate control of their respective governing body.
The no-soap rule came from back when soap contained lye, which does indeed strip the seasoning from cast iron. This knowledge was passed down, and became false as soap changed formulas. Not because of "hipster culture", by which I think you mean consumerism. Try to have an open mind.