I was looking at the start of this comment, which I found merely wrong, and then I got to the end.
Wat.
An approximately rational truth seeking community can reasonably be expected to come to a reasonably good approximation of the truth, compared to what they have access to. As such, such a community can be used as an (approximate) indicator of the truth.
Moral relativism can fall down a well. (emphasis on the ism. I don't mean ists. It is a rhetorical statement, not a literal one.)
Wat.
An approximately rational truth seeking community can reasonably be expected to come to a reasonably good approximation of the truth, compared to what they have access to. As such, such a community can be used as an (approximate) indicator of the truth.
Moral relativism can fall down a well. (emphasis on the ism. I don't mean ists. It is a rhetorical statement, not a literal one.)