Marcus' article mentions Hinton's recent misgivings about backprop: "Perhaps most notably of all, Geoff Hinton has been courageous enough to reconsider has own

Marcus' article mentions Hinton's recent misgivings about backprop: "Perhaps most notably of all, Geoff Hinton has been courageous enough to reconsider has own beliefs, revealing in an August interview with the news site Axios 16 that he is “deeply suspicious” of back-propagation, a key enabler of deep learning that he helped pioneer, because of his concern about its dependence on labeled data sets. Instead, he suggested (in Axios’ paraphrase) that “entirely new methods will probably have to be invented.” I share Hinton’s excitement in seeing what comes next.