Yes. I have thought a great deal about this.
We are in not necessarily in danger of losing all the knowledge humans have accumulated during our time on this planet because, unless all libraries get burned to the ground when it happens to an unprepared world that goes into an orgy of violence when EVERYTHING we depend on in our daily lives is taken away in one fell swoop, we will still have some way, somehow to access that knowledge.
What we are in danger of is destroying ourselves in that orgy of violence, crime, starvation, deprivation, and nearly 100% guaranteed, war.
And burning down our depositories of knowledge in the process.
Thing is-most people-even highly educated people-absolutely do not realize the razor’s edge we live on, being so dependent on electricity for EVERYTHING.
Everything. No running water. No food. No transportation. No communication. Nothing is exempt.
If we had a Carrington Event today...I don’t want to see it. We are so mentally unprepared for that.
Not to mention the effects on people and animals.
Cancers would be rampant................
You didn’t mention the failure that would cause the end of the world as we know it most quickly: the internet.
Without the internet, the EBT system goes down and after the ferals rob and loot all the food out of the grocery stores in a few days, they will take it from whoever has it. You preppers think you’re ahead of the game but tell you what, you can’t resist a hungry mob that outnumbers you a hundred-fold or more.
Our enemies know this, and the only thing that stops them is it would result in such a mess to clean up no one dares use an EMP weapon. Killing the internet is the new neutron bomb - it would wipe out all human life in short order and no amount of preparation or buried caches of books will stop it.