"It will not suffice for the creationist simply to point to the lack of evidence for a secondary cause of life. From no evidence no scientific conclusion follow. Some positive evidence for creation must be presented before a positive conclusion can be drawn."
"It is true that special creation is not testable against any regularly recurring pattern of events in the present. But neither is macroevolution. Both views involve unobserved past singularities. That is, they involve rare occurrences. For example, so far as we can tell, life did not emerge from nonlife over and over. Nor were the great transitions between major forms of life repeated again and again. Hence there is no recurring patterns of events against which to test how the universe began, how life began, or how diverse life forms originated. So neither macroevolution nor creation comes within the discipline of operation science. This does not mean that there is no sense in which macroevolution and creation are scientific. Although they are not an empirical science, nevertheless they function like a forensic science. Just as a forensic scientist tries to make a plausible reconstruction of an unobserved (and unrepeatable) murder, so the evolutionist and creationist attempt to construct a plausible scenario of the unobserved past singularities of origin. So neither view is operation science. Rather both are in the domain of origin science."