I see — so it seems like what confused me about your comment is that your definition of ‘closely connected’ doesn't mean in a theoretical sense, i.e. that there

I see — so it seems like what confused me about your comment is that your definition of ‘closely connected’ doesn't mean in a theoretical sense, i.e. that there's a well-understood mapping between them, but is more about a cultural connection in which people make choose to make active use of category-theoretical concepts when working in a more concrete field? Thank you for explaining :)