"and Gould himself : UNDIRECTED . In a sense , the specter of directed variability threatens Darwinism even more seriously than any putative failure of the other two postulates . Insufficient variation stalls natural selection ; saltation deprives selection of a creative role but still calls upon DarwinÂ ’ s mechanism as a negative force . With directed variation , however , natural selection can be bypassed entirely . If adaptive pressures automatically trigger heritable variation in favored directions , then trends can proceed under regimes of random mortality ; natural selection , acting as a negative force , can , at most , accelerate the change . ( Gould 2002 : 145 )"
"See above . I wo n't bother trying to de-quote-mine until you can provide evidnece that variation is directed ."
"the specter of directed variability threatens Darwinism Insufficient variation stalls natural selection With directed variation , however , natural selection can be bypassed entirely ."
"provide evidnece that variation is directed ."