“With World Homeopathy Awareness Week fresh in our minds, it is appropriate to ask: why did evolution, which has always taken such a make-do attitude to developing the faculties of living things, not choose to work with water to construct an immune system capable of remembering its enemies? Surely, given the prodigious feats of memory attributed by homeopaths to this glistening, life-giving fluid, Nature could have fashioned a watery armour to protect us from disease? This has not happened of course because memories require fixed structures and water is a liquid. In this form, it is no more capable of remembering molecules than of being sculpted.” Professor Stephen Curry, structural biologist, Imperial College London (17th April 2010)