The post is about implications for impartial longtermists. So either under moral realism it means something like finding the best values to pursue. And under moral anti realism it means that an impartial utility function is kind of symmetrical with aliens. For example if you value something only because humans value it, then an impartial version is to also value things that alien value only because their species value it.
Though because of reasons introduced in The Convergent Path to the Stars, I think that these implications are also relevant for non-impartial longtermists.
The implications are stronger in that case right.
The post is about implications for impartial longtermists. So either under moral realism it means something like finding the best values to pursue. And under moral anti realism it means that an impartial utility function is kind of symmetrical with aliens. For example if you value something only because humans value it, then an impartial version is to also value things that alien value only because their species value it.
Though because of reasons introduced in The Convergent Path to the Stars, I think that these implications are also relevant for non-impartial longtermists.