George:This article by Prof Alice Roberts may be of interest > > http://www.theguardian.com/society/2015/jan/18/scientists-wrong-luck-cancer-genes-alice... > > Randomness is useful - even necessary.-Thank you for this article.I view this as a parallel to Gould's approach that everything is contingency, and that pure chance led to humans. I take an opposite view as you know. In this area of thought it is all opinion with nothing solid.