I want to talk about magazines, because I don’t know what that word means anymore.
If you saw a roughly rectangular paper object containing pages lying on a table, you’d probably be able to tell at a glance what it is. You would open it, flip the pages, read, close it, put it back down on the table. Magazine, your brain would say. Not a newspaper or a book, not a broadsheet or a pamphlet. Not a poster, not a letter. Magazine.
Once you take the physical form away, though, it gets blurrier.