Know how to tell someone isn’t as intelligent or as informed on a topic as they think they are?

They repeat themselves over and over throughout a conversation but do nothing to actually substantiate their viewpoints nor do they take the time to consider the opposing viewpoints and take the necessary time to assess that before attempting to rebuttal.

You’ve typed a lot of words yet said nothing.

You’ve been told multiple times over that the very thing you are arguing for already exists, and you seemingly cannot fathom having been riled up all this time over easily accessible information nor accept that your cognitive dissonance is why you can’t cede that point and admit you need to reassess your opinion on the topic. You’re being argumentative just for the sake of it