There is no worse pseudointellectual than a Very Intellectual and Scientifically Enlightened Person, that much is generally understood outside of scientistic circles.
But I have to say, the so-called "doers" (see: most right-wing public figures) are just as aggravating to me.
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I'm even okay with a lot more certainty than that, when it's built on something. It's certainty that survives legitimate challenges that bothers me.