The more I thought it through, even assuming x86, I guess there’s just no “correct” way to casually reference bit positions when we read them in the opposite order from the machine. Are they being referenced from the perspective of a human consumer of text, or the machine’s perspective as a consumer of bits? If I were writing that content, I’d have a difficult time deciding on which to use. If I were writing for a lay person, referencing left-to-right seems obvious, but in this case where the audience is primarily developers, it becomes much less obvious.