Hacker News Reader

> To be clear, I mean the incredibly useful notion of realizing that cross-domain knowledge can share structure.

Is there somewhere you can suggest that I can read more about this notion?

Check out this section of the SEP entry on Category Theory:

3. Philosophical Significance https://plato.stanford.edu/entries/category-theory/

I suspect a lot of the formal work on ontology involves CT.

By "share structure" they mean (the various degrees of) analogy - a widely-known concept that has been made rigorous within the framework of category theory (via the notion of a functor).

Reply on news.ycombinator.com