those are perfectly coherent and sound for those who entertain them, we should though do not call them "Clippy's, Elves' or Pebblesorters' morality", because words should be used in such a way to maximize their usefulness in carving reality: since we cannot go out of our programming and conceivably find ourselves motivated by eggnog or primality, we should not use the term and instead use primality or other words.
So my car is a car becuse it motor-vates me, but your car is no car at all, because it motor-vates you around, but not me. And yo mama ain't no Mama cause she ain't my Mama!
Yudkowsky isn't being rigourous, he is instead appealing to an imaginary rule, one that is not seen in any other case.
And it's not like the issue isn't important, either .. obviously the premissibility of imposing ones values on others depends on whether they are immoral, amoral, differently moral , etc. Differrently moral is still a possibilirt, for the reasons that you are differently mothered, not unmohtered.
So my car is a car becuse it motor-vates me, but your car is no car at all, because it motor-vates you around, but not me.
The difference is not between two cars, yours and mine, but between a passegner ship and a cargo ship, built for two different purpose and two different class of users.
Yudkowsky isn't being rigourous, he is instead appealing to an imaginary rule, one that is not seen in any other case.
On this we surely agree, I just find the new rule better than the old one. But this is the least important part of the whole discussion.
...obviously