I'm just saying that this is a question without a real answer, although you're right it can make for an interesting discussion. I'm trying to think of an analogy; Could we give a really intellectually satisfying answer to the question "Should people be free and treated with dignity and respect?". Of course all people of good will know the answer to that, but can you really say why, without sprouting a circle of questions of equal difficulty? Like "Because they will be happier." Then comes, "Well why should they be happy when all of our ancestors lived for millions of years in what we would now call abject misery?" I think we'd all be happier spending our time making music and being with loved ones. But people seem to enjoy this argument; I personally have felt a whole lot better since I quit letting it bother me.

A voice of a little experience, hard won, Chet