The relationship between physics and metaphysics (literally "beyond physics") is a fascinating one. It helps sometimes to remember that we can approach God from the side of philosophy and not just on the basis of revelation. Terry Pratchett, the English fantasy writer who has sold more than 60 million books and once said he was "rather angry with God for not existing", in a more recent interview ventured the view that "It is just possible that once you have got past all the gods that we have created with big beards and many human traits, just beyond all that,
on the other side of physics, they [the gods] just may be the ordered structure from which everything flows." Indeed, the Christian idea of God, properly understood, is of something that could not not exist, if the world is to make any kind of sense.
Ever since 2006 in Regensburg, Pope Benedict XVI has spoken about the need for "broadening our concept of reason and its application". But what
