Quipu

Were these lots of knots spreadsheets in string--or books instead? In a history of writing for the blind, I seem to recall that a kind of string writing was developed for the blind in early 19th-century Scotland. Different knots were developed, 7 or 8, I think; and each could be tied in one of four positions on a cord. This allowed the alphabet and some basic punctuation to be developed. Beats encoding a book into the aromas of incense. Let's smell Gone with the Wind today! Shall we? Alfaction as literacy. Haptics is literacy.