Perhaps you are a tech wizard, I don’t know. But if you aren’t, can you explain in technical detail what the internet is and how it works? Or your smart phone? Probably not.
As Arthur C. Clarke said: Any sufficiently advanced technology is indistinguishable from magic. To the survivors of an apocalypse, everything lost would be magic.
Actually, even now, for most people, much of the technology we use is magic, in that we don’t understand it and can’t explain it. We just worship it by blindly accepting it and using it. On Faith.