Mr. Yudkowsky,
It is the fact that purported moral facts add nothing to a description of a state of affairs and have no explanatory or predictive power that they are not facts at all.
Statements of moral proposition such as "X-actions are wrong" or "One ought to do X-actions" are rather simply expressions of preferences or pro attitudes for X actions. If one has these preferences, then, those preference combined with a belief that a particular action A is an X-action gives you a reason to perform action A. However, if an agent does no... (read more)
Mr. Yudkowsky, It is the fact that purported moral facts add nothing to a description of a state of affairs and have no explanatory or predictive power that they are not facts at all. Statements of moral proposition such as "X-actions are wrong" or "One ought to do X-actions" are rather simply expressions of preferences or pro attitudes for X actions. If one has these preferences, then, those preference combined with a belief that a particular action A is an X-action gives you a reason to perform action A. However, if an agent does no... (read more)