I like where you’re going with this, especially the distinction between signals that are hard to fake versus those that are performative. That alone already explains a lot of everyday misjudgments.
One angle that adds another layer here is the difference between *expressed intelligence* and *latent intelligence*. What the study is really capturing is how well people can detect intelligence when it’s already being externalized through language and structure. But that’s just one slice of the picture. There are plenty of cases where intelligence doesn’t show up as articulate speech, especially across domains or cultures.
Also, the point about psychological stability is more important than it seems at first glance. If your internal model of people is biased by insecurity, status anxiety, or even just cognitive laziness, your evaluations won’t be calibrated, no matter how sharp you are technically. So accuracy here might come less from “being smarter” in isolation and more from having a well-tuned mental model of others.
Another interesting implication is that this creates a kind of feedback loop. More intelligent individuals are better at recognizing intelligence, which means they’re more likely to correctly identify and engage with other capable people. Over time, that probably compounds into better networks, better conversations, and even sharper judgment. Meanwhile, poor evaluators might systematically miss high-quality interactions without realizing it.
So yeah, the uncomfortable takeaway isn’t just about misjudging others. It’s that your ability to recognize value in people is itself a form of intelligence that shapes the kind of world you end up experiencing.