zlacker

>>Rooste+(OP)
I explored a startup idea that really didn't make sense unless there was a way to ensure users were unique humans in an anonymous and privacy preserving way.

Researched it substantially and realized it's an unsolved problem. Anything that makes a dent is incomplete and comes with ugly tradeoffs. For a time I wondered if I should try and solve it myself, but I could never think any solution that hadn't already been/being tried. Years later I'm left curious if it's even possible to solve the problem.

My point is that captcha won't solve this, and solving this problem is a lot harder than it seems at first, and might not even be solvable (which I know is hard to accept).

If someone does find an elegant privacy ensuring way to solve it, I think the impact would extend far beyond HN and could make a big difference to the future of civilization as a whole.

>>FloorE+5Q
It is a solved problem with ZKPs

>>baxuz+vS
I studied ZKPs. You and I must have very different understandings of the actual scope of the problem. Like I said, everything that exists or is being worked on that makes a dent (including ZKPs) is incomplete or has ugly trade offs.

Maybe you are thinking purely from a math / theoretical perspective, but I'm thinking of a compete solution that's practical to use to solve the problem for sites like HN and many others.