More Detailed Expelled! Review/Overview & Lying About the Origins of Life

Probably the most in-depth account of the film yet: Josh Timonen has written up his basic summary of how the Intelligent Design film Expelled! tries to make its case.

There’s a lot to digest in his account, but in a way, not very much new to talk about. As I’ve noted, there just isn’t a heck of a lot that’s new to the science/creationism debate in this film: it’s like a recently released greatest hits album from a long-defunct 70s band… and they couldn’t even bother to slap together any unreleased tracks or a new cut or anything.

Just to hit on a single aspect while we’re at it: you can’t get much more pathetic than dragging out the Miller-Urey experiment and then claiming that:

  1. it was meant to create life
  2. nothing happened

Both claims are simply ludicrous. The whole point of the Miller-Urey experiment, the whole reason that it’s in textbooks, is that the result was, in fact, very surprising, especially considering the very modest expectations going into it. To not explain what that result was, or to paint the thing as if it were some sort of Frankenstein-switch-throwing-dud… it’s almost criminal.

As should be obvious, Miller and Urey never purported to be creating life, and no textbook claims that this is what they did. What they discovered were that the distinctive amino acid building blocks of carbon-based life as we know it were, in fact, not the universal rarity that scientists had previously assumed.

As it happens, Miller and Urey were working with what was a very preliminary model of what the early earth was like: a simulation that we now know was likely not representative of the general environment. But, also as it happens, this actually boosts the importance of their find, rather than diminishing it: it’s significant that they didn’t have to endlessly tinker and fine tune their experiment to produce these molecules. They got them even just with a very sloppy early attempt. And, as we now know, these molecules form under a very broad range of possible early earth conditions (including those that we now think are more accurate), as well as other key molecules found to form in the conditions of asteroids and other space debris that the early earth was constantly being pelted with (a simple scientific reality that Expelled! apparently tries to ridicule or avoid by lumping it under the decidedly more speculative and whimsical idea of panspermia).

It’s one thing to note that life on earth is made up of the basic raw materials found in the universe and on planets like Earth (carbon, nitrogen, etc.) That’s interesting, but there’s little in the way of specific structure or organization implied there. What Miller and Urey demonstrated was that much of the distinctive core alphabet of molecules that all life on Earth is now composed of… are found forming naturally in the very times and places were we know life likely began. Not only that, but recently studies into the have found that, guess what, the sequences of modern DNA that seem most ancient contain substantially higher amounts of the very sections of the amino acid alphabet that experiments like Miller/Urey’s have shown most readily form in early Earth conditions.

Again: this isn’t the be all and end all of demonstrating that life began via chemical processes, or even answering the question of exactly how. We most certainly do not yet know how life began: no one does. But for those who are actually interested in someday having an explanation, rather than just an opaque theology, it’s incredibly significant: an extremely suggestive finding that, were it not to imply something about the origins of life, would otherwise have to be a pretty amazing coincidence.

There’s really no way for creationists to spin away the implications. So, as we will apparently see yet again in Expelled!, they simply lie about it.

Addendum: I probably should have linked to it in the original brouhaha over Myers’ expulsion, but his daughter Skatje also has her own write-up of the film available.

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2 Responses to More Detailed Expelled! Review/Overview & Lying About the Origins of Life

  1. […] it, given early earth conditions as we know them. I’ve already covered how badly the film botches it’s telling of the Miller/Urey experiments (again, the film’s line on these is identical to Jonathan Well’s Icons and other […]

  2. Jack says:

    More Detailed Expelled! Review/Overview & Lying About the Origins of Life ? The Bad Idea Blog adler@gigemail.net

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