I'll talk to my friends about "my day" every once in a while. Invariably it involves programming and the act of trying to describe what I'm doing is like off-roading: you constantly have to go long ways around things to avoid crossings the conversation can't handle, it's rough and bumpy the whole way, and some destinations simply can not be reached.

In short: I agree that rambling may have more to do with the difficulty of translation than the internal understanding.