People realized it couldn't when, in nineteen sixty four, a biologist by the name of Wyn Edwards at the University of Edinburgh actually bothered to publish a book arguing the theory, and when Wyn Edwards argued the case, almost immediately most people began to realize that it, that it didn't make sense and that most of the evidence that he thought supported the theory doesn't in fact do so, and today Wyn Edwards has himself refused it, even he now er admits that group selection er cannot work.