It's a biological and societal reality. While we may end up solving the immediate demographic crisis through technology (e.g. Optimus for the elderly), the future of humanity depends on raising children. Not taxing the rich, personal convenience, or trivializing my stated position as one that is "easy" to have.
Of all the public online communities, you'd think HN would be capable of calling it the way it is. But I'm afraid it's been overrun by brainwashed ideologues as I've seen many times the truth being downvoted into oblivion during my short time here. Maybe we should do an experiment and make an account that only posts Paul Graham's positions and see how often it gets downvoted. I suspect the culture has shifted quite a lot since HN's founding and a decent chunk on the margin no longer cares about what's true over what's acceptable.
