Occasional commenter “Lickmuffin” sent a link to this article saying “Overly optimistic outlook here, I’m afraid. What good is digital storage when there won’t be any electricity?”:
We were discussing the dark ages, which not only were characterized by the disintegration of the Roman political order, but also the loss of an immense store of practical technological knowledge: agricultural practices and implements; construction techniques — it would take until the 19th century for Europeans to match the Romans’ road-building prowess — war machines; distribution and warehousing; science; art (which in Roman times was the realm of artisans, not self-absorbed “transgressive” pricks).
I said that I think we are headed for a “soft dark ages.” That took him aback. “How are we headed there,” he asked, “and how would they be ‘soft’?”
I answered his last question first. They would be “soft” because unlike what happened in Roman times, we have the ability to store gigantic amounts of information in small spaces. One person can carry around encyclopedic knowledge on a flash drive. Multiply him by the millions, and you have a vast repository of recoverable knowledge that is private, widely dispersed, and replicated many times over. No matter how determined or persistent this era’s barbarians — Marxists, Muslims, Democrats, unionists, academicians — they simply would not be able to track down and destroy all modern technological knowledge.
But beyond furtive individual efforts at hiding and protecting the knowledge we would need to create a New America or a New West, there would be vaster, more organized, more collective efforts to protect knowledge until better days. I suggested to Bob three institutions or concepts that would become the next dark ages’ hallmarks: The new castle fortress; the new monastic life; and the new Europe.
My latest round-up of Guild Wars 2 articles, blog posts, and community activities is now up at 
