That was a lot of very interesting valuable information.   I plan to save that email and study it word for word, someday.

What precisely is "the main repository" in a physical sense ? 

I assume that specific repo is stored on a very fancy modern server, along with other valuable software.   If so, what kind of hardware ?

And I assume there is some kind of backup server at that location and also at other locations.

I assume there are highly trusted people with both physical and remote access to the server.  How many ?   Ten ?

I assume these specific servers are controlled by  Fedora 31 ?

Is there a copy of Fedora 31 entombed, in a very deep underground vault some where ?

I know that I need to do more research on my own, and I will someday.

David Locklear