Edit: I mean decision-theoretic symmetry (you should help other intelligent beings achieve their values because if you did not find that path appealing neither would other beings with different values find it appealing to to assist you in achieving your values, thereby cutting off support from any agent with even slight differences from you), not the symmetry of “turning the earth into paperclips”, whatever that would mean.
Symmetry.
Edit: I mean decision-theoretic symmetry (you should help other intelligent beings achieve their values because if you did not find that path appealing neither would other beings with different values find it appealing to to assist you in achieving your values, thereby cutting off support from any agent with even slight differences from you), not the symmetry of “turning the earth into paperclips”, whatever that would mean.