I tried and cannot. Just keep thinking of it as: if something is doing 2 jobs, split it, if 2 things have the same as they say goes-in-tos and -goes-out-ofs, combine them. And same doesn't mean bit for bit match (though obviously don't needlessly duplicate data), but just a bit higher level.

The problem is that I don't sit in the microservice or enterprise backend spaces, so I an struggling to formulate explanations in those terms.