@abundance
yea you're right that decentralized identity is not a new primitive.
what's new with Farcaster imo is that you have an open graph where users are interacting - so you have rich data that can be used for reputation.
Reputation is the component you actually need to make these platforms work
of course there are other challenges involved for Uber/Airbnb etc - I just don't think that's what stopping newcomers from succeeding.
having to bootstrap a network is the harder problem, and FC solves this
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