For me it's not an issue of perception, but sheer lack of working memory:
On top of that, said explainer will complain that their work is "super difficult" and "hard to explain", but then, if by some miracle I can get them to sit still long enough and get up to speed, "miraculously" I'm able to onboard others.
I swear it's not a super-power! I just don't assume a ton of context!