Essentially, ID proponents are gambling that they can concede evolutionist earth science without conceding evolutionist life science. But they can't. They already acknowledge microevolution—mutation and natural selection within a species. Once you accept conventional fossil dating and four billion years of life, the sequential kinship of species loses its implausibility. You can't fall back on the Bible; you've already admitted it can't always be taken literally. All you're left with is an assortment of gaps in evolutionary theory—how did DNA emerge, what happened between this and that fossil—and the vague default assumption that an "intelligence" might fill in those gaps. Calvert and Harris call this assumption a big tent. But guess what happens to a tent without poles.
Perversely, evolutionists refuse to facilitate this collapse. They prefer to dismiss ID proponents as dead-end Neanderthals. They complain, legitimately, that Calvert and Harris are trying to expand the definition of science beyond "natural explanations." But have you read the definition Calvert and Harris propose? It would define science as a continuous process of "observation, hypothesis testing, measurement, experimentation, logical argument and theory building to lead to more adequate explanations of natural phenomena." Abstract creationism can't qualify for such scrutiny. Substantive creationism can't survive it. Or if it can, it should.
It's too bad liberals and scientists don't welcome this test. It's too bad they go around sneering, as censors of science often have, that the new theory is too radical, offensive, or embarrassing to be taken seriously. It's too bad they think good science consists of believing the right things. In the long view—the evolutionary view—good science consists of using evidence and experiment to find out whether what we thought was right is wrong. If they do that in Kansas, by whatever name, that's all that matters.
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