To a greater or lesser extent, the destruction of the past is an on-going, universal project. Whether it’s demolishing old buildings to make space for new ones or cutting down woodland to accommodate agriculture on an industrial scale, we can’t ever really let things be. If we never destroyed anything, the world would be an even more weird, uncomfortable and overcrowded place but nonetheless there’s often more to our reluctance to let things go than simple nostalgia. In the last half century or thereabouts, China has witnessed wholesale destruction of its history in the name of both ideology – the Cultural Revolution – and, more recently, progress, as the past is razed to make room for the future. Nonetheless, Ai Weiwei’s destruction of ancient ceramics in the name of art might seem in some respects excessive. It certainly has the power to shock though perhaps one of the most surprising aspects is that the value of what one might assume to be priceless ancient artefacts such as a Neolithic urn dating from 5000-3000BC can be increased by the addition of a Coca-Cola logo.