Opens up an entire sector for magazine and book readers. @Gigi was talking about a reading apps like Readwise, but you could also make something to rate books like Goodreads, or to write and publish books like Adobe, or an ePaper viewer for Nostr 30023/30040 notes, so that someone could download the note and all of the first and second-level links or embedded items to their cache or local relay/database, to view them offline. Of course, eMagazines and eNewspapers. Etc.