Ed Yong on cryptic variations

Steve Jones once said " People often think of natural selection as something almost magical. But it isn’t. It’s extraordinarily simple. I first witnessed natural selection taking place in a soap factory in Liverpool in the 1960s, where I worked after leaving school." and goes on to descrie a very neat example of making a nozzle by soap powder manufacturers in http://www.cosmosmagazine.com/features/the-end-evolution/ Not so simple says Ed Yong describing 'cryptic mutations' "Biologists, however, are increasingly realizing that some mutations are important not because they provide immediate benefits but because they enable adaptations to occur in the future. These mutations can build up because natural selection does not remove genetic alterations that have no obvious effects on our proteins, cells or bodies."| inhttp://www.scientificamerican.com/article.cfm?id=hidden-mutations-seemingly-unimportatnt-mutations-can-foster-disease