That's the same feeling I get after learning (a rather rudimentary but practical level of) category theory. How you end up looking at anything from a single fu

That's the same feeling I get after learning (a rather rudimentary but practical level of) category theory. How you end up looking at anything from a single function up to high level architecture and the same patterns emerge - that it's all about the maps between things, not really the specifics of the things themselves.