This photo of a mosaic in Herculaneum is an amazing example of something not decaying over a period of 2,000 years - it's an incredibly vivid piece of artwork. But I'm thinking right now about teeth. Do we outlive our teeth in Western society? Come to that, do we in fact outlive our joints and all? Do science and nutrition keep us alive only to be mocked by the failure of our bits? Garn. Sad, the effect of sitting in the dentist's waiting for emergency treatment occasioned by yet another filling failure.