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2025-06-14 22:43:15 UTC
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TobyBartels on Nostr: nprofile1q…d6kk0 It's confusing because you have to assume that the students have ...



It's confusing because you have to assume that the students have already been confused in an earlier course.

But honestly, I think it really is confusing. People were doing arithmetic for millennia before Brahmagupta started doing it with 0. Aristotle mishandled syllogisms with uninstantiated terms, and this wasn't straightened out until the 19th century (and arguably still hasn't been). Large ordinal numerals in natural languages across the globe are adapted from cardinal numerals with a fencepost error. Some of this is the dead hand of tradition and authority preserving one initial mistake, but it wouldn't pop up over and over again and last so long if it wasn't legitimately harder even for some very smart people.