Dear Lorraine,
After Alexey and I have discussed his answer to you, we realized that you do, in fact, provide a reason against the Platonic world, whose consideration is missing in his post. In bringing that up, I also wanted to ask for a clarification on your essay and your other posts as regards a certain difficulty I'm having with them. I cannot seem to get away from a confusion between what you call the universe, a synonym of "all there is", and that which traditionally is viewed as only a part of "all there is," usually called material reality, determined (sans quantum chaos) by laws of nature. In the former sense, there can only be one universe, but in the latter we can envision many different worlds in different relationships with each other, not all of them material or even temporal, such as the Platonic world providing laws to the rest.
In my conversations with "anti-Platonists," I seem to consistently come up to an underlying protest against realism's perceived overbearing perfection and determinism. Yet your objection seems to be different (although I cannot seem to find it now, so please correct me if I'm misinterpreting). You say that in postulating the Platonic world we express distrust to the universe to be self-sufficient. I'm not quite sure how to understand that. In light of the two definitions of "universe" above, would you say that the following quote from C.S. Lewis' Miracles is a criticism to your idea?
"You must go a little away from her, and then turn round, and look back. Then at last the true landscape will become visible. You must have tasted, however briefly, the pure water from beyond the world before you can be distinctly conscious of the hot, salty tang of Nature's current. To treat her as God, or as Everything, is to lose the whole pith and pleasure of her. Come out, look back, and then you will see ... this astonishing cataract of bears, babies, and bananas: this immoderate deluge of atoms, orchids, oranges, cancers, canaries, fleas, gases, tornadoes and toads. How could you ever have thought this was the ultimate reality? How could you ever have thought that it was merely a stage-set for the moral drama of men and women? She is herself. Offer her neither worship nor contempt. Meet her and know her. If we are immortal, and if she is doomed (as the scientists tell us) to run down and die, we shall miss this half-shy and half-flamboyant creature, this ogress, this hoyden, this incorrigible fairy, this dumb witch. But the theologians tell us that she, like ourselves, is to be redeemed. The 'vanity' to which she was subjected was her disease, not her essence. She will be cured in character: not tamed (Heaven forbid) nor sterilised. We shall still be able to recognise our old enemy, friend, playfellow and foster-mother, so perfected as to be not less, but more, herself. And that will be a merry meeting."
Lev