Not only confirmation bias, but also they're essentially polling a very specific subset of the population. This is a segment of the population that would be re

Not only confirmation bias, but also they're essentially polling a very specific subset of the population. This is a segment of the population that would be replete with model train enthusiasts, RC plane hobbyists, and HAM radio operators back in the day. So, yeah, things of interest in the tech space would be of even more interest to people on HN. But yeah, they also picked the "winners", they really have to filter for all topics discussed by HN and then find out how many of those became "future tech" and how many fell by the wayside. Because if it's 1 in 100, it's not a really good predictor. And if something becomes mainstream, then of course it'll be talked about. That's kind of how it works.