Urbit ships are synthetic names that sound like human names in a foreign language. Eg, ~sondel-forsut. This is just a 32-bit number in a phonemic base-256.

Our experience is that people rapidly bond with their ship names. Apparently no one is too old to want a secret codename. And human beings of a more grownup character can interact pseudonymously through dignified, impersonal synthetic names -- instead of retarded juvenile handles as on Wikipedia etc, or real names as on Facebook.