Humans have shown them selves to be more than willing to post generated content on behalf of a bot. And worse, bot farms often employ a bunch of humans to mass post bot created content.

* scans eye *

* pushes button on keyboard-button-pressing machine *

The analog hole works just as well in reverse.

> build this with the world app and retina scanning

So how would the interface/UX work with that, for each outgoing request you'd need to scan your retina, so you'd have something like a Yubikey at home, but with a little retina-camera instead?