3 ms·

I was not saying either really. I was asking what sure fire way we have other than a number / name for identity.

• zAy0LfpBZLC8mAC 9y ago
  Well, there is biometry, with the simplest form being a picture, if you want to somewhat reliably identify people.
  • pixl97 9y ago
    Out of 7 billion people, a fair number of them look like you. I'd hate to have an ass for a twin in your world.
  • TheSpiceIsLife 9y ago
    While I thoroughly agree with everything you've said on the subject thus far... How does being in possession of a picture, or any other biometric data, help? These data are reproducible, like any other attribute that supposedly identifies only-Alice.
    • zAy0LfpBZLC8mAC 9y ago
      Checking the possession of a picture is not biometry (that would be possession-of-a-picture-metry). Making a picture is biometry (measuring the body, essentially). The hard problem with biometry is proving to a third party that a certain identity is responsible for a contract, but identification with biometry (convincing yourself that the person before you is the same person that you enrolled earlier) at least works a lot better than asking for essentially public information.