> there is nothing more annoying than someone assuming context I don't have

I worked with a senior developer when I was a junior who would answer any question by starting from first principles.

I understand sometimes a question can betray a misunderstanding of foundational principles but this was decidedly not the case, at least in most of the incidents.

I eventually learned to just not ask him questions unless I was absolutely desperate, because it would take him 5-10 minutes to work up to the critical piece of information I was actually missing. I think he just liked to hear himself orate.