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John H Conway on his love/hate relationship with his most "famous" invention.More on how he invented it at: http://youtu.be/R9Plq-D1gEkWebsite: http://www.numberphile.com/Numberphile on Facebook: http://www.facebook.com/numberphileNumberphile tweets: https://twitter.com/numberphileGoogle Plus: http://bit.ly/numberGplusTumblr: http://numberphile.tumblr.comNumberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphileVideos by Brady HaranA run-down of Brady's channels: http://bit.ly/bradychannels