Is the combined knowledge of humanity safer than it has ever been?
From what I understand, a lot of knowledge was lost following the collapse of the Roman Empire as manuscripts were no longer being copied at the established frequency and information that had lost relevance (for certain jobs etc.) wasn't being passed down.
If a catastrophic event were to happen nowadays, how much information would we theoretically lose? Is the knowledge of the world, stored digitally or on printed books, safer than it was before?
All the information online for example - does that have a greater chance of surviving millennia than say a preserved manuscript?
The problem of restoration after a catastrophic event might be less technical and more about sifting the knowledge from the misinformation and idiocy. There's worthwhile known fiction as well, cultural icons that are understood in context but after a longer loss might just be clutter, or even cause trouble.
Think about how, after the fall of the Roman Empire, a lot of technical knowledge was lost but the Bible was not only preserved but increased its influence in the practice of medicine, and politics, maybe architecture, certainly art. What if, instead of every town having a church full of gilded pictures of saints, there were pictures showing how to build an aqueduct and bath house? Or even cat pictures? Arguably keeping cat-worship alive could have prevented the devastating losses of the Black Plague.