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wasoxygen · 3583 days ago · link · · parent · post: Why Our Children Don’t Think There Are Moral Facts
I am not quite satisfied with your statement, but I don't know how I could improve on it so I won't criticize. "Preferable" is a better word if you happen to have iron handy and no copper when you need a conductor, but copper is still objectively better — it has a lower electrical resistivity. Saying "preferable" does not save us from the trouble of declaring our values. Hydrogen is preferable if cost is a priority; helium is preferable if safety is most important.