It's definitely a coping mechanism. When you've been burned repeatedly by people nodding vigorously in understanding, then turning around and revealing a complete lack of comprehension, forcing you to either intervene or allow the error to propagate, it's tempting to fall into a habit of pre-emptively explaining everything.
> revealing a complete lack of comprehension, forcing you to either intervene or allow the error to propagate, it's tempting to fall into a habit of pre-emptively explaining everything.
Or maybe the explanation was bad to begin with. Over communicating won't turn a bad explanation into a good one. Understanding something doesn't mean you know how to explain it to someone else.
