what3words is a much nicer system. It's actually such a simple system that I could think of a few other things to apply it to: 1. Random but fair distribution

what3words is a much nicer system. It's actually such a simple system that I could think of a few other things to apply it to: 1. Random but fair distribution of domain names to everyone on Earth, if that becomes a thing. 2. Any kind of unique identifier that should be user memorable.