We often hear about the virtue of “teaching the controversy” when it comes to origins. The strategy is to lay out various options to students--options on which “experts” disagree--and let them make up their minds. This proposal appeals to America’s sense of fair play. America, from the days of its founding to its dynamic entrepreneurial culture of today has always celebrated the ability to break free of traditional ideas and boldly go where nobody has gone before.
The anti-Darwinians would have us view evolution the same way the founding fathers viewed the yoke of British colonialism. Just as the heavy hand of Britain had to be removed, so the yoke of Darwin must be cast aside as well, if we are to be truly liberated to find the truth. And what better way to find the truth than to have the options laid out in front of us, like the entrees on a menu waiting to be selected, or the candidates on a ballot waiting to be elected to office?
Despite the generous tone of such a proposal, it is a recipe for the production of widespread scientific illiteracy. Sending the message that we can “choose” our preferred science from a roster of options undermines the entire concept of science for it makes science seem like politics. Science is nothing like politics. Politics, at its best, is all about trying to create a society where people will be happiest. And the criteria for that change from time to time. Once upon a time women could not vote and that seemed OK. Now it is not OK. Once upon a time, education was not universally available and now it is. Politics is all about figuring out how things should be, based on how we would like them to be.
Science is the opposite of this. Science is about finding out how the world is whether we like it or not. And the lesson of history is that science is often not what we want it to be. Galileo’s arguments for the moving earth were not greeted with a chorus of “Amens” by his colleagues in Rome. John Donne expressed the concern of that generation when he wrote that this “new philosophy casts all in doubt.” Galileo’s ideas became the consensus slowly because they were true, not because they made people happy, or got selected by the majority from a roster of options.
The same thing is true of the Big Bang theory. Countless scientists went on record opposing the strange idea that our universe emerged in some kind of transcendent explosion beyond the reach of science. The Steady State Theory was developed by some leading cosmologists specifically to oppose the Big Bang because many scientists did not like it and wanted it to be false. But facts are facts and gradually a consensus emerged that the Big Bang was true.
In a more interesting development, we have watched “scientific racism” gradually be undermined by advances in genetics. It was once believed that certain races, like Australian aborigines, Africans, or Native Americans were demonstrably inferior. The textbook from which John Scopes supposedly taught evolution made this claim explicitly. But scientific advances in our understanding of human origins destroyed the foundations of these racist notions. All scientists though, did not welcome these advances. Racism runs deep and it was hard for some people to accept that their racism was based on an irrational and ultimately immoral prejudice and not on science.
But, once again, a consensus emerged that “race” does not have a biological basis. Many scientists are justifiably proud that science has dealt such a blow to humanity’s greatest social plague. This happened, though, through the achievement of consensus, as opposing viewpoints were undermined and the reluctant holdouts gradually came on board.
The same is true for evolution. Darwin’s ideas were not met with universal and unbridled enthusiasm. In fact, his key idea of natural selection was ignored for decades because most biologists thought it was too feeble to do the work Darwin assigned to it in The Origin of Species. The consensus about evolution that exists among biologists today took about a century to achieve. Thousands and thousands of reluctant, often brilliant, frequently cranky, scientists had to “come around” to Darwin’s view.
This is the meaning of “consensus” in science. Thomas Cudworth, on the Uncommon Descent blog, describes the embrace of consensus as “prostration before a self-selecting clique of experts.” This he says, “is repugnant to good science, to good philosophy, to the ideal of the university, and to the ideal of an open, free and democratic society.”
This does not make sense to me. Tens of thousands of biologists at thousands of universities spread around the planet are hardly a “self-selecting clique of experts.” And what does “self-selecting” even mean in this context? I would love to “select” myself to a tenured position at Harvard but I am unaware that such an option is available to me. The claim that the standard methods of science are “repugnant” to a “democratic society” is, alas, completely true. If only we could “vote” on what we wanted to be true, rather than have it imposed on us by the way things are.
Science is anything but democratic. Mother Nature casts the only vote and it is the job of science to determine how she voted. She votes only once and never changes her mind.
The scientific community is filled with creative, obstinate, and highly independent personalities. Anyone who attends a scientific meeting can see this clearly. Scientists dress strangely, have irregular hair, and are often socially odd. They can be abrasive and obnoxious. They despise convention and disrespect tradition. If there is any group that would be unwilling to bow before a “self-selecting clique of experts”, it is scientists.
A scientific consensus represents a hard-won victory over every imaginable sort of opposition. We should not set aside such consensus just because a tiny group of articulate outsiders offer us some ideas that we might like better. The ID movement has people with Ph.D.s to be sure. And a few of them have conventional scientific posts. But their pleas that we set aside scientific consensus must be ignored.