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This is: An Alien God, published by by Eliezer Yudkowsky on the LessWrong.
"A curious aspect of the theory of evolution," said Jacques Monod, "is that everybody thinks he understands it."
A human being, looking at the natural world, sees a thousand times purpose. A rabbit's legs, built and articulated for running; a fox's jaws, built and articulated for tearing. But what you see is not exactly what is there...
In the days before Darwin, the cause of all this apparent purposefulness was a very great puzzle unto science. The Goddists said "God did it", because you get 50 bonus points each time you use the word "God" in a sentence. Yet perhaps I'm being unfair. In the days before Darwin, it seemed like a much more reasonable hypothesis. Find a watch in the desert, said William Paley, and you can infer the existence of a watchmaker.
But when you look at all the apparent purposefulness in Nature, rather than picking and choosing your examples, you start to notice things that don't fit the Judeo-Christian concept of one benevolent God. Foxes seem well-designed to catch rabbits. Rabbits seem well-designed to evade foxes. Was the Creator having trouble making up Its mind?
When I design a toaster oven, I don't design one part that tries to get electricity to the coils and a second part that tries to prevent electricity from getting to the coils. It would be a waste of effort. Who designed the ecosystem, with its predators and prey, viruses and bacteria? Even the cactus plant, which you might think well-designed to provide water fruit to desert animals, is covered with inconvenient spines.
The ecosystem would make much more sense if it wasn't designed by a unitary Who, but, rather, created by a horde of deities—say from the Hindu or Shinto religions. This handily explains both the ubiquitous purposefulnesses, and the ubiquitous conflicts: More than one deity acted, often at cross-purposes. The fox and rabbit were both designed, but by distinct competing deities. I wonder if anyone ever remarked on the seemingly excellent evidence thus provided for Hinduism over Christianity. Probably not.
Similarly, the Judeo-Christian God is alleged to be benevolent—well, sort of. And yet much of nature's purposefulness seems downright cruel. Darwin suspected a non-standard Creator for studying Ichneumon wasps, whose paralyzing stings preserve its prey to be eaten alive by its larvae: "I cannot persuade myself," wrote Darwin, "that a beneficent and omnipotent God would have designedly created the Ichneumonidae with the express intention of their feeding within the living bodies of Caterpillars, or that a cat should play with mice." I wonder if any earlier thinker remarked on the excellent evidence thus provided for Manichaen religions over monotheistic ones.
By now we all know the punchline: You just say "evolution".
I worry that's how some people are absorbing the "scientific" explanation, as a magical purposefulness factory in Nature. I've previously discussed the case of Storm from the movie X-Men, who in one mutation gets the ability to throw lightning bolts. Why? Well, there's this thing called "evolution" that somehow pumps a lot of purposefulness into Nature, and the changes happen through "mutations". So if Storm gets a really large mutation, she can be redesigned to throw lightning bolts. Radioactivity is a popular super origin: radiation causes mutations, so more powerful radiation causes more powerful mutations. That's logic.
But evolution doesn't allow just any kind of purposefulness to leak into Nature. That's what makes evolution a success as an empirical hypothesis. If evolutionary biology could explain a toaster oven, not just a tree, it would be worthless. There's a lot more to evolutionary theory than pointing at Nature and saying, "Now purpose is allowed," or "Evolution did it!" The...
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