Stenger has responded to Barnes and Barnes has responded to Stenger:-http://letterstonature.wordpress.com/2012/05/02/in-defence-of-the-fine-tuning-of-the-universe-for-intelligent-life/-It seems to me that Stenger takes a broad-brush approach but Barnes wants all the i's dotted and tees crossed. -Barnes' metaphysical objections to the universe coming from nothing implying that what Stenger calls nothing is not really nothing works the other way round. It is the philosophical concept of nothing that can't really exist.-Barnes is too well versed in the theories, he finds it difficult to think outside his specialism.