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This seems like a description of US here at Stacker News.
Might ACX readers be unrepresentative? Obviously yes, although it’s not clear which direction. Readers tend to be more interested in and willing to use AI than the general public, and more willing to think about speculative and controversial ideas on their own (maybe a risk factor?). But they’re also richer and more educated, and mostly understand enough about AI to avoid the pure perfect machine spirit failure mode. Overall it seems like a wash. Also, I would expect their friends and family to be less unrepresentative than they are.