The most pressing challenge for the web is the lack of a built-in trust system.

you're constantly wondering when something on the web is: created by a real person, who is that person, are they reputable, are they a bot, scammer or impersonator?

with a cryptographic trust system we can solve this while retaining anonymity. your cryptographic identity can sign information about other identities. All content on the system is signed by one of these identities which will include trust information.