Absolutely. I spent a lot of life thinking I was an introvert. Turns out I was just spending a lot of time focusing on math and physics and computing, and the s

Absolutely. I spent a lot of life thinking I was an introvert. Turns out I was just spending a lot of time focusing on math and physics and computing, and the state of concentrating fiercely on something and trying to tune out distractions -- especially distracting humans -- is nigh-indistinguishable from "introversion". I actually rather like interacting with people, but I also like to think deeply, and I can't talk and think deeply at the same time. So I have to alternate if I want to stay happy.