I'm not contradicting you at all, but I'm just curious: how do you know that you are smarter than virtually everyone you meet? If there is anything more to it than an intuition, I'd love to know about it. I've always wondered if there was some secret smart-person handshake that I wasn't privy to.

Personally, I'd say the lower 80 or 90% immediately identify themselves as such, but beyond that I try to give others the benefit of the doubt. Maybe they aren't interested in the conversation, don't want to seem intelligent, or or just plain out of my leauge. I don't value humility very highly at all; but there aren't many things that would convince me I or someone else was demonstrably in the top fraction of the top percentile.

Also, I've been intuitively aware of the optimism bias for as long as I can remember, and estimates like ".1% and 99.9%" trigger my skepticism module hard.