A User Protocol (UP). It would be similar to IP but specific for each user. Basically, a user for all your devices and webpages. It'd be managed on the browser-

A User Protocol (UP). It would be similar to IP but specific for each user. Basically, a user for all your devices and webpages. It'd be managed on the browser-side and synced across devices. A User might have and use several profiles, much how you can send emails with several "from" or when you browse in private mode. It would basically delete all the throw away accounts that we have to do nowadays and the security risk with repeating passwords. It might even get rid of email as we know it since you could do communication user to user. Development nowadays - Mozilla's Persona: https://login.persona.org/ https://login.persona.org/ getting adopted slowly. - Facebook/twitter/linkedin/etc login apis. Not ideal since you are tied to the place. Pros: emails and communication, p2p, payments, development time (no difficult login). Cons: stolen id = stolen life, privacy