Scientific critique of creationism

Since the origins of modern geology in the 18th and 19th centuries, forms of creationism have become increasingly separated from mainstream science. As modern science called into question the literal interpretations of biblical account of creation in Genesis, creationists (especially Young Earth creationists) began to actively oppose the scientific consensus on questions of origins.

There is a fundamental difference between the scientific approach to explaining the natural world and the creationist approach. The scientific approach uses the scientific method as a means of discovering information about nature. Scientists use observations, hypotheses and deductions to propose explanations for natural phenomena in the form of scientific theories. Predictions from these theories are tested by experiment. If a prediction turns out to be correct, the theory survives. This is a meritocratic form of systematic enquiry, where the best ideas supported by evidence and positive experimental results survive. In principle, the scientific method does not seek answers that fit a certain pre-determined conclusion, but rather works to construct viable, testable, and provable theories based on a solid evidential foundation. The evidential foundation therefore precludes any reference to revelation.

Creationism, on the other hand, works by taking theologically conservative interpretations of scripture as the primary or only source of information about origins. Creationists believe that since the Creator created everything and also revealed scriptures, the scriptures have pre-eminence as a kind of evidence. Consistency with their interpretations of scripture is the measure by which they judge all other evidence. They then accept or reject scientific accounts based on whether or not they agree with their beliefs, discounting that which contradicts their understanding of scriptural revelation. This perspective can be seen as a type of luddism or anti-modernism since any seemingly opposing ideas are either ignored or dismissed. Those who oppose creationism point out that such positions are fundamentally unscientific and a hallmark of pseudoscience. Additionally, aspects of the scriptures which are not subject to scientific examination are not considered as reliable evidence to scientists.

Certain adherents to creationism have declared that there exist versions of creationism (namely creation science) that are based on the scientific method. It was such claims that were the basis for the legal arguments that creationism deserved equal-time in the science classroom. Skeptical critics charge that creation science is not a theory that has come about through a systematic and scientific accumulation of evidence. It is predominantly based on the assumption of a literal interpretation of religious scripture and the emphasis of the authority of scripture over other sources of knowledge is evident in creation science literature.

All scientific theories are falsifiable; that is, if evidence that contradicts any given theory comes to light, or if the theory is proven to no longer fit with the evidence, the theory itself is shown to be invalid and is either modified to be consistent with all the evidence or is discarded. Scientific theories can be (and often are) found to be incorrect or incomplete. Since creationism rests on an article of faith, its construction assumes that the narrative accounts of origins can never be shown falsified, no matter how strong the evidence is to the contrary.

Evolutionary modern synthesis is the theory that fits all known biological and genetic evidence while being backed up by overwhelming evidence in the fossil record. Contrary to frequent claims by many opponents of the theory of evolution, transitional fossils exist which show a gradual change from one species to another. Moreover, evolutionary selection has been observed in living species (for a macroscopic instance, “tuskless elephants,” see elephant).

In the last ten years, DNA analysis techniques applied to many organisms have demonstrated the genetic relationship between all forms of known life (humans share 50% of their DNA with yeast, 96 with chimpanzees). Even if the theory of evolution was disproved, this would not imply separate human creation, which is the main feature of creationism in the Abrahamic religions. It is exclusively in the public sphere, where young Earth creationists (especially in the U.S.) have fought for recognition of their world view, that the debate about creationism and evolution continues.