Objective Morality?

[theVOID]

I find this one of the most compelling cases I've heard for a realist approach to morality.

Thanks, it's been a long time coming. I don't find too many people approach it like that but it seems to make good use of moral language.

Is it possible for a desire/pleasure to become a fact about the physical universe?

It's a fact that I desire a bong hit and blow jobs bring me pleasure and that all of this is a product of my brain experiencing various phenomenon, something that is part of the physical universe...

I'm not so sure about that, there doesn't prima facie appear to be an instantiation of a desire

Instantiation as in a property of an object/entity? Sure there are. Desires exist as an emergent property of brains.

and what pleases me from minute to minute day to day may change rapidly.

Sure, suppose one minuet you dislike being slapped in the face and the next minuet you find it pleasurable, If someone slaps you while you dislike it they have had a negative effect on your values, if someone slaps you while you enjoy it they've had a positive effect.

More than this can desires build to become objectively true?

I'm not sure what your asking... Desires are the products of neural mechanisms, it is objectively true that I desire certain things.

Is it also possible that desires are also illusory and do not really exist?

I don't see how they possibly could be. Do you have any examples of illusory desires?

Imagine that same world where bathing was deemed to be bad. Now imagine those people had no desires, would the outcome be the same? Probably yes, but wouldn't that just be a rule that was imposed by that society and not really something that was morally good or bad.

If people had no desires they would probably have no values - Someone without values wouldn't value life so they wouldn't care whether or not they had any water for drinking or what the other person did with the water, nobody would have any reasons to do anything with the water period so nothing would be done with it and nobody would have any motivation to impose any rules. There would also be no such thing as good or bad, either morally or in terms of the individuals liking or disliking anything.

Read this if you have time; http://lesswrong.com/lw/71x/a_crash_cour..._of_human/

It's a long article but it summaries the modern understanding of human motivation.