A Nation Ruled by Science Is a Terrible Idea

July 7, 2016

“Scientism” is the belief that all we need to solve the world’s problems is, you guessed it, science. People sometimes sub in the phrase rational thinking, but it amounts to the same thing. If only people would drop religion and all their other prejudices, we could use logic to fix everything.

Last week, Neil deGrasse Tyson offered up the perfect example of scientism when he proposed a country of #Rationalia, in which “all policy shall be based on the weight of evidence.”

@neiltyson

Earth needs a virtual country: #Rationalia, with a one-line Constitution: All policy shall be based on the weight of evidence

4:12 PM – 29 Jun 2016

9,448 9,448 Retweets
20,077 20,077 likes

Tyson is a very smart man, but this is a very stupid tweet, and a very stupid idea. It is even, we might say, unreasonable and without sufficient evidence. Of course imagining a society in which all actors behave logically sounds appealing. But employing logic to consider the concept reveals that there could be no such thing.

There has always been a hope, especially as elites became less religious, that science would do more than simply provide a means for learning about the world around us. Science should also teach us how to live, pointing us toward the salvation religion once promised. You can see this in any of the secular utopianisms of the 20th century, whether it’s the Third Reich, scientific Marxism, or the “modernization thesis” of Western capitalism.

And yet each of these has since been summarily dismissed, and usually for the same two reasons.

First, experts usually don’t know nearly as much as they think they do. Experts often get it wrong, thanks to their inherently irrational brains that, through overconfidence, bubbles of like-minded thinkers, or just wanting to believe their vision of the world can be true, mislead us and misinterpret information. Rationality is subjective.

All humans experience such biases; the real problem is when we forget that scientists and experts are human too—that they approach evidence and reasoned deliberation with the same prior commitments and unspoken assumptions as anyone else. Scientists: They’re just like us.

And second, science has no business telling people how to live. It’s striking how easily we forget the evil following “science” can do. So many times throughout history, humans have thought they were behaving in logical and rational ways only to realize that such acts have yielded morally heinous policies that were only enacted because reasonable people were swayed by “evidence.” Phrenology—the determination of someone’s character through the shape and size of their cranium—was cutting-edge science. (Unsurprisingly, the upper class had great head ratios.)

Eugenics was science, as was social Darwinism and the worst justifications of the Soviet and Nazi regimes. Scientific racism was data-driven too, and incredibly well respected. Scientists in the 19th century felt quite justified in claiming “the weight of evidence” supported African slavery, white supremacy, and the concerted effort to limit the reproduction of the lesser races. It wasn’t so long ago that psychiatrists considered homosexuality unhealthy and abhorrent.

There is at least one prominent, eminently rational psychiatrist who hasn’t come around on transgenders. And many scientists decided that women were biologically incapable of the same kind of rationality you find in men, a scientific sexism reborn in contemporary evolutionary psychology. Weirdly enough, you find a similar kind of misogyny in that high priest of scientism, Richard Dawkins.

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