It's something I've always wondered, as I'd be interested. In the meantime, the "rationalist" sphere, who have similar intellectual interests spanning tech, policy, altruism, economics, etc., are mostly online but do actually have meetups spanning lots of global cities. I imagine you'd find 80% of what you'd want from an HN meetup. (caveat: I haven't been to any though)
This sounds similar to 2600 meetings I used to attend in the before times - lots of interesting people and ideas, always coming away from them with a ton to add to my video queue and reading lists. I would maybe say one could get 70% of what you'd want from an HN meetup but I would still be down for an HN meetup if one was organized and not too far away.
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