dating-website like user prediction matching

[ghost]

Suppose I go to gwern's user page.

It could display a list of claims that

• We disagree most sharply
• We agree on most closely
• New claims to gwern (he sort of has that, but it could instead list things that he's predicted and i have not)
• A % or some kind of metric might be shown on their user page to show how closely your beliefs about the future/past align with theirs. Average difference in prediction?

I think this could give people an idea of how they relate to eachother. That, truly, would be a social feature of this site.

(I'm imagining this much how OKCupid's questions work - each user has a % rating of how much you agree/disagree with them)