Ok, can you "reason through exactly how to define a file?"

Is defining something as an "abstraction" the same as saying you can't provide a definition?

Since you are a driver worker, do you consider something a file before it is written to a filesystem?

I read you as needlessly combative here, getting far from the points made. Commenter said they told a kid that websites are just a collection of files, kid replied "what's a file?", and I chimed in that that's not so strange, because even people who work with them might have a hard time nailing down a definition. None of this is incompatible with your soap box, but you're writing as if we disagree.