 If there was one influential individual in the revival it was probably Donald T. Campbell.In 1960 he drew on Wright to draw a parallel between genetic evolution and the "blind variation and selective retention" of creative ideas; work that was developed into a full theory of "socio-cultural evolution" in 1965 (a work that includes references to other works in the then current revival of interest in the field.Campbell (1965 26) was clear that he understood cultural evolution not as an analogy "from organic evolution per se, but rather from a general model for quasiteleological processes for which organic evolution is but one instance".