The Smug Baldy Speaks

I saw this comment on a religious blog, and thought I’d give it some more room here. This was made in response to a favorable review of Ben Stein’s movie Expelled: No Intelligence Allowed:

ID isn’t really scientific and its detractors are correct to say so. However, evolution is completely neutered by LOGIC, which needs no bunsen burner or laboratory. I’ve been told that complex enzymes existed on comets and that’s where life came from. The proponents of this never seem to be concerned that a ‘complex enzyme’ has to have an origin, too. The mental gymnastics needed for faith in evolution pump up the pride of the ’scientists’ who espouse it. The wisdom of the world is indeed foolish.

Such hand-waving assertion that LOGIC (in all caps, no less) neuters evolution or that scientists have “faith” in evolution are great examples of why we need to have intelligent conversation about what science is and how it operates. Unfortunately, movies like Expelled do more to cloud the issue and polarize people with its dishonest caricature of science, scientists, and even ID.

That evolution occurred and continues to occur is indisputable fact. To deny this is to deny converging evidence from not only the the fossil record , but also from observations of chemical and anatomical similarities of related life forms, from the geographic distribution similar species, from documented genetic changes in organisms over many generations, and from specific predictions the theory makes which have been observed.

That Darwin’s theory of evolution, since its inception, has withstood intense scientific and popular criticism, and yet remains the current best explanation for the diversity of life on earth is also indisputable fact. Science has a way of dealing with bad theories if they fail to measure up: they are replaced by better theories.

One might ask, then, “What characteristics would a replacement for Darwin’s Theory of Evolution have to possess?”

Here are some must have’s:

• Falsifiability: Any potential replacement for Evolutionary theory would itself have to be able to be proven false. Evolution is indeed falsifiable: It requires an old Earth , it operates at the level of genetic material to transform species over time (sometimes, geological time scales), and it predicts that certain species that exist now did not exist earlier. As Haldane said, “Fossil rabbits in the Precambrian” would pretty much toss Evolution into the bin.
• Explanatory Power: Any replacement for Evolution would have to explain everything that evolution does, and it would have to simultaneously explain observations that Evolution could not explain. So, if we were to find rabbit fossils in Precambrian strata, then the new Theory would have to account for that as well.
• Simplicity: Evolution has essentially one mechanism to account for the diversity of life: Natural Selection. Any theory that has a hope of replacing evolutionary theory would similarly have to rest upon the operation of a natural (as opposed to supernatural)
  process.

Note that Intelligent Design possesses none of these qualities. It is not falsifiable, and in invoking a supernatural agent as it’s underlying causal agent, its explanatory power approaches zero since any irreducibly complex designer can do anything it wants by waving it’s irreducibly complex hands about.

And hand-waving is something we want in only small quantities, especially in science.