It's not, the point of personhood isn't that it's exploit-free, but it acts as a fundamental rate limiter. Certainly there will still be theft downstream of the verification, but (assuming the approach delivers on the goals) you will not be able to do anything to generate an arbitrary number of recipients.
There’s billions upon billions of people, any motivated actor could have access to millions of people (Worldcoin have access to 500,000 and it only cost them 25 WRLD each!).
There’s already a black market for this sort of fraud, so this isn’t theoretical, Uber have a lot of problems with it.
Sure, but it's zero sum. It's a bounded amount of skew in the distribution that's innate in any system that is subject to vulnerabilities that have a high return on violence. This isn't the same as generating people, which is what I said is basically the main thing worldcoin is trying to prevent.
Any system that is predicated on "one X per person" needs to ensure that a single human can't synthesize multiple "persons" in order to get more than one X and cheat the system.
Systems like this include:
* Democracy: One vote per person.
* Universal basic income: One income voucher per person.
* Some sales: One coupon per person, or one purchase per person.
* Many resource usage licenses: Can only catch one salmon on this river per person, etc.
Basically, it's good to have systems that are fair and equitable and in many cases, a way to do that is to distribute the good uniformly to people. That requires you to accurately determine how much each person gets, which requires a reliable notion of person.
At the same time, I think Worldcoin is complete nonsense. Almost all of the above systems function much better when scoped to a smaller regulatory authority that already has an existing reliable notion of person: passport, driver's license number, etc.
Yeah, this is pretty obvious. I don't know that the phrase "fundamental rate limiter" can be used to describe a solution to this problem. Maybe it's me but it seems very odd choice of words.
