Where people, version, and agreed upon are, or can be, dynamic. To wit, Wikipedia allows us to view history, view / participate in talk, and even edit an entry

Where people, version, and agreed upon are, or can be, dynamic. To wit, Wikipedia allows us to view history, view / participate in talk, and even edit an entry. Indeed, for any sufficiently complex topic, it would seem to me, there is ongoing and lively debate, or at least discussion. Perhaps even new evidence from time to time.