One addendum:
The cold start problem refers to the problem of getting enough critical mass to trigger a positive feedback loop. If the people on a network produce the majority of value for other users, how do you get the first users to join?
Gitcoin Grants 2.0 already has passed the cold start problem because of the momentum of Gitcoin Grants 1.0. But Gitcoin passport has not.
There are some great resources out there that give suggestions about how to solve the cold start problem:
A lot of them boil down to "do things that dont scale to boostrap the network.
For example, we could bootstrap the “more utility” portion of the Gitcoin Passport product by adding more integrations. We could bootstrap the “more users” portion of the network by releasing toy use cases with token rewards in them (eg “prove you have at least $100 worth of cost of forgery in Gitcoin Passport and get a 50 DAI reward”).