“Real typewriters”, for much of their lives, were mostly write-only devices. You didn’t interactively edit with a typewriter; you drafted—typing something out without really being able to see the result very well, except when you get a paragraph or so further along—and then, when you were done, you’d pull the sheet out, write editing marks on it (or your editor would), and then you (or a typist) would take the sheet+editing marks and transcribe the result through another typewriter, to get a cleaned result. (Any mistakes made during transcribing would result in starting over on transcribing that sheet. Unless you had one of the fancy typewriters with a secondary white-out ribbon, and the result was just heading for a fax machine anyway.)

Really, it was a major revolution when the first word processors came ‘round, and you got a little LCD display one-line buffer, that you could commit to the paper or re-write.