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>... 33 'Yes' or 'No' general questions that, when answered correctly, uniquely identified everyone on the planet.

I think a lot is possible with this challenge. You could compress over 8 billion yes/no questions in a single yes/no question under these rules.

And if that doesn't neatly divide people, why not let the people divide themselves through unique thought?

A 33-bit hash would probably collide too much. Yet there seems no requirement to communicate your hash back to the creator of the questionnaire with your answers. It could be a 1024-bit hash of a short story like:

  Hi I am blauwbilgorgel. I currently define myself as male.
  My internet names are ... I lived at ... I think we are
  in Time Cube. Today is Setting Orange. I declare ...
that would create a unique hash with which to uniquely identify yourself with.


But, then again, so would "I am John Doe and live in 23 Maple Road, Kentucky, US, 12345, Apartment 1a", that's why the post office uses it.


You can't identify everyone in the world that way though. There are people with the exact same name living in the same house, and there are people who don't have a postal address.




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