The humble hashtag was low-key brilliant.

· Bits and Bobs 12/1/25
  • The humble hashtag was low-key brilliant.
    • It was a userland hack for precise string matching to make search and trending work.
    • The human writing the tag picks one they think others will think to use to find it.
    • Like the old Google image Labeler Game... everyone is trying to think of how other people will think to find it, and doing that, which is naturally convergent.
    • By the hashtags being in an explicit, non-accidental namespace, people can't accidentally tag something, so all tags are intentional to that string.
      • Maybe they don't know what other people will think of that string and aren't in on the joke, but they do know they tagged it.
    • This creates a concave system, where convergent results emerge automatically.
    • Best of all: no one had to design this system, it could just emerge!

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