djbt wrote:Well, you've skipped quite a lot else, too. Like a definition of the word 'equal' in this context, and an explanation of how exactly you make the logical leap from the first statement to the second.
You asked for an example of an "ought" statement derived from an "is" statement. I provided that. You didn't ask for the method by which the former was derived from the latter, and this thread is, in any event, not the place for that discussion. If you still question whether an "ought" can be derived from an "is," then explain the reason for your doubt rather than get sidetracked into irrelevant tangents.
djbt wrote:I am still unconvinced you can derive an ought from an is.
No doubt you heard someone say that once and now it has stuck in your mind, but you offer no evidence that suggests that you
understand the proposition. For Hume, it was easy to contend that an "ought" cannot be derived from an "is," because Hume questioned
all "ought" statements. But you describe yourself as a utilitarian, and, as I mentioned previously, utilitarianism is a theory of morality; therefore, utilitarians
must believe that there are "ought" statements. Your task, then, is to explain why you adhere to Humean skepticism regarding the basis of morality yet still believe in it.
djbt wrote:Well, I would say that all systems of morality have to be based on at least one unsupported ought premise, even if it is just 'one ought to be good', or 'one ought to care about the well-being of those other than his/herself'.
Then you would be begging the question. Didn't you read the link that I provided?
djbt wrote:If something is 'to the detriment of system as a whole', then utilitarian calculus would not support it.
Then the selfish hedonists would
not be allowed to avoid their obligations to maximize utility for others?
djbt wrote:Your argument seems to be: 'A utilitarian government would follow utilitarian calculus and do x. The consequences of this would, in fact, be bad by utilitarian standards. Therefore there is a problem with utilitarian calculus'.
Clearly this is a ludicrous argument. All that is in error is your initial assumptions about what utilitarian calculus would support. Clearly, if you are capable of anticipating exploitation of a system, any BICUM would also anticipate this, and adjust any policy decisions accordingly.
That doesn't answer my question. I asked "if a moral theory erects a system of incentives that rewards selfish behavior on the part of some people to the detriment of society as a whole, then one is justified in asking whether
that is moral." And if your answer is that utilitarians would not be put in that position because they would
always (under the benevolent guidance of their big computer) enact rules that maximized utility, then the question is: is it moral to enact rules that
punish selfish hedonists who experience great disutility when called upon to maximize the utility of others?