Or so the reference magnetist claims.

One way of understanding Horgan & Timmons' famous Moral Twin Earth argument is in the following way. It seems to us that Earthers and Moral Twin Earthers disagree in a substantive way. But if metaethical naturalism is conjoined with a semantic theory entailing that Earthers and Moral Twin Earthers mean different things by their moral words, then it seems that the disagreement between them is merely verbal. The disagreement will be about the meanings of their words and not on the moral facts. But this seems to be the wrong result.

Reference magnetism is a robust metasemantic theory that endeavors to provide the resources to a naturalistic semantics sufficient to account for substantive disagreements between Earthers and Moral Twin Earthers. Reference magnetists claim that some properties are so metaphysically elite (reality joint-carving) that they literally attract some of the terms of our language--without our ever needing to knowing it. If you're interested in knowing how reference magnetism from here accounts for how Earther and Moral Twin Earther can engage in substantive debate, please have a listen. Thank you for listening!