>What if less intelligent people are more inclined to believe those who seem intelligent,

I'm going to assume the actual truth behind this is complex, varied, and social.

When I was younger I had moved from a school that slightly above average to one that was below average in grades. The area had a really strong cult of ignorance feeling and I saw a lot of different behaviors in people that reflect themselves in political patterns. People that embrace ignorance seem much less likely to follow people that outwardly signal intelligence, quite often the opposite happens and they outright reject them. Instead of intelligence they are much more apt to believe those that broadcast success.

This quite often leads to power seeking individuals "playing dumb" and bolstering their success signal. "Awe shucks, that guy that got top scores at Harvard is just like me who didn't graduate high school" would be a good analogy to frame it.

> What if what he says is true?

You mean you don't independently know one way or the other?

So you are taking it on his authority?

Because it was stated with confidence?

According to him, you must be one of those low IQ people.

Does that help to see the irony here, and why the original claim is not only clearly wrong but inherently elitist and insulting towards its own intended audience?

The alternative, the world that all intelligent people must live in at all times accordinng to the comment, is epistemic solipsism, that everything is presumed false, everyone is lying or erroneous, because there is no guaranteed way a priori to separate true statements from false ones.

> I doubt anyone is doing the research on it.

Not only is there research on it, this is like Psych/Journalism/Philosophy/Law/Communication 101 stuff. There are textbooks on it written over a century ago. It is the topic that the field of "Social Psychology" was invented to study.

The dominant theory is the Elaboration Likelihood Model, which describes and predicts based on situations when a person is more likely to doubt a claimed statement of fact, taking into account past experience with the source, cultural norms, motivation, time, concentration/nondistraction, and domain knowledge.

There is also tons of research specifically on the impact of intelligence on susceptability to persuasion by authoritative tone, and the reality is the *opposite* of what was claimed: smarter people who enjoy deep thinking are more likely to believe falsehoods (Price & Stone, 2004), because they perceive the overconfidence as exciting new information to think about, just like you are doing now.

So congrats, by uncritically believing the guy who incorrectly said you were low IQ for believing him, you actually provided evidence that suggests you are high IQ, because science shows that gullibleness is a trait of high-IQ people.

You could also be right-wing authoritarian, that's the other thing that strongly predicts gullibleness but I'm gonna guess you're smart instead.