My take on genius is that it's akin to insanity, and for some of us, insanity doesn't seem to be so insane (which itself is an insane thing to say). Nikola Tesla ended his life alone, with a box of scrap parts as collateral for his rent (
https://www.history.com/news/9-things-you-may-not-know-about...). Friedrich Nietzsche wrote "The Parable of the Madman" (
http://historyguide.org/europe/madman.html), and apocryphal stories indicate he may have written it from his own experience.
Beyond some point, being smart really isn't a good thing. You can't relate to people. Nobody understands you. Your value structure is messed up. Parents point to you and tell their children to not be like you. You live on top of a cold, windy, snowy mountain while everybody else lives in a warm and fertile valley. Yet you choose to live on the mountain anyways, because after you lose everything, you realize that's just who you are, and there's really nothing you can do about it beyond accepting it.
And so you are insane. You don't care about being comfortable, or about being paid well, or about people liking you, or having fewer problems in life, or anything else that makes sense. You just care about obsessing over that something.
People always talk about genius like it's some good thing. Maybe sometimes, if you obsess over something society values. But few people talk about the price of genius, probably because we're taught from an early age that being smart is a good thing and so few people go that far off the deep end anyways. I think it should be said, especially for HN types, that there can always be too much of a good thing. That it's healthy to relax, not take things so seriously, have a sense of humor, and relate to other people. That a good life is worth living. Because to forget that is a life lost.