How could you tell the IQ of people you were working with? I'm struggling to see how you could arrive at this conclusion unless you've 1) worked with an inordin

How could you tell the IQ of people you were working with? I'm struggling to see how you could arrive at this conclusion unless you've 1) worked with an inordinate number of both high IQ individuals, who 2) explicitly mentioned their IQ scores to you. Personal hypotheses such as this one spread like wildfire online because they're easy to state, play to a narrative and are extremely difficult to disprove. They're stated confidently while skipping over so many little gaps - for example, I don't see anything obvious about how high IQ individuals would stop trying to explain things to low IQ individuals. It makes sense as a heuristic for explaining the behavior of one particular individual who is perhaps a misanthrope or has little patience. But it's very poorly generalizable.