_:vb6990787 "2012 October 28, Robin McKie, \u201CDavid Attenborough: force of nature\u201D, in The Observer\u200E[1], retrieved 29 October 2012:"@en . _:vb6990787 "We forget what we have learned in the last 60 years. At university I once asked one of my lecturers why he was not talking to us about continental drift and I was told, sneeringly, that if I could I prove there was a force that could move continents, then he might think about it. The idea was moonshine, I was informed."@en .