This was wonderful and one of your best works yet.
It reminds me a lot of a book I read a long time when I was younger.
In it they stated that death was like a letter missing from a sentence. The sentence keeps going and the book is almost completely unchanged.
Nobody might ever notice the book if different but something is still missing.
If enough of them vanish at once the book becomes unreadable.
The part where HyperText wrote about being afraid to delete the text brought back that memory really strongly.