Law
Most people agree that current legal systems are unjust in some ways. Some say we need reforms; some say we need a full revolution. But in either case, we first need some level of agreeing
This wiki can provide a place for that, with open-source collaboration. Suppose we were to rewrite entire sets of laws for society - what might that look like? Note: there doesn't have to be one single version only. We could experiment with writing multiple versions, perhaps each based in a different philosophy and see where it leads. Some parts could be universal; some could be adapted to different cultures. Each version could be a separate subpage.
I haven't fully opened this wiki yet, but I plan to. For now, if you're interested in collaborating, please post a comment in the talk page. I haven't yet figured out exactly how it should all work - let me know what you think!