[cornhole34]

Is there a name of a phenomena when you expect someone to be equal or more knowledgeable as you are when discussing a topic? The Dunning-Kruger effect is when one overestimates their own ability. But is there an effect of overestimating someone else's? I feel as though that explains the reasoning.

[renewiltord]

There's an xkcd that describes this phenomenon quite well https://xkcd.com/2501/

Overestimated Familiarity Window. There you go - an abstruse term that you can use assuming other people will also understand it, and therefore the reference fulfills the referent.