I would have to disagree with you.  The universe is not built on what-ifs, but rather upon what IS.  Throughout the universe you see order upon order upon order.  If the universe was based in pure chaos there would be nothing, not even a semblance of reality.  Now of course, the argument goes, that everything broken down to the smallest reducable particle you are left with nothing...but that nothing has form and structure.  It obeys various laws that are VERY testible.  These very laws ARE the absolutes of the universe.  They work and have been working for a very long time.  Whether you believe in creationism, evolution, materialism, egotism, weirdism, or whatever floats your boat these laws still apply to you and work regardless of belief.  It is really interesting that alot of people will say they don't believe in absolutes yet their very being REQUIRES absolutes.  What most are saying is not that there aren't absolutes...just that there are no MORAL absolutes...which could very well be...but I couldn't give you a logical arguement for or against, thus I tend to fall back on my "well, I dunno".  As for absolutes in general they DO exist.  The wonderful thing about being human<I sometimes doubt it though> is our wierd and strange ability to disregard anything that threatens our images of ourselves.

  That being said, while there are absolutes <and yes I AM taking a stance here ( call it my super-ninja-magic-jump ona bed and scream stance)>  It is sheer folly to say that we know and understand these absolutes completely.  At best I would say we have a taste or flavor for the possible and the absolute.  A couple of nice quotes on the subject by Eliphas Levi from "Magic and Magism":