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Not very much, but interesting none the less Bramhodoulos Send a noteboard - 06/08/2011 11:38:36 PM
Link below.

(It also thoroughly debunks creationism in other FAQs.)


Thanks for the link. I'm aware of TalkOrigins in general, though don't use it all that often.

Just by way of repeating myself: I'm not arguing against evolution and in fact I was hoping to defend NS, but I find it harder and harder. I need NS for the version of creationism I prefer in fact, or I'll have to give that up or change it as well.

There was a small paragraph that offers a few arguments I have not encountered above just yet (though the book I'm reading discusses them all over several pages).

However, there is another, more sophisticated version, due mainly to Karl Popper [1976: sect. 37]. According to Popper, any situation where species exist is compatible with Darwinian explanation, because if those species were not adapted, they would not exist. That is, Popper says, we define adaptation as that which is sufficient for existence in a given environment. Therefore, since nothing is ruled out, the theory has no explanatory power, for everything is ruled in.

That would indeed be my point (or one of them at least), so at least they don't misrepresent my point (that doesn't happen very often with TalkOrigin, but hey :P )

This is not true, as a number of critics of Popper have observed since (eg, Stamos [1996] [note 1]). Darwinian theory rules out quite a lot. It rules out the existence of inefficient organisms when more efficient organisms are about. It rules out change that is theoretically impossible (according to the laws of genetics, ontogeny, and molecular biology) to achieve in gradual and adaptive steps (see Dawkins [1996]). It rules out new species being established without ancestral species.

Three things they mention that Darwinian theory rules out.
Note: this is about Darwinism all of a sudden, while I was talking about NS! Why are the two similar to a degree that whenever one talks about NS one talks about Darwinism???
It is true the other way around: whenever one talks about Darwinism one talks about NS, but what's going on here?

Anyway they mention three things, let's see.
1) it rules out the existence of ineffective organisms. No it doesn't. It rules out the persistent existence of ineffective organisms (when more efficient organisms are about). And if they continue to exist over a long period of time we conclude that they must have at least some hidden benefit somewhere we don't know about!
2) and 3) have nothing, I repeat nothing to do with NS. Seriously.

All of these hypotheses are more or less testable, and conform to the standards of science. The answer to this version of the argument is the same as to the simplistic version - adaptation is not just defined in terms of what survives. There needs to be a causal story available to make sense of adaptation (which is why mimicry in butterflies was such a focal debate in the teens and twenties). Adaptation is a functional notion, not a logical or semantic a priori definition, despite what Popper thought.


Note the highlighted part.
Honestly, there is no limit to the amount of casual stories a biologist can invent. Really! I tried to come up with a 'casual story' for the life-stages of a butterfly and I couldn't invent one. Yet more intelligent biologists did eventually come up with one. I could not invent a casual story for lungs, legs, eyes, a liver, hair, wings. Yet biologists did eventually found casual stories for all of them.
In fact, I don't think I can imagine any hypothetical trait, no matter how absurd, that biologists won't be able to give me a 'casual story' for to explain its trait by natural selection. There are simply no limits.

I think this is why I generally don't like TalkOrigin. They have a position and they defend it. Fine. But they argue so bad.
In fact it's sites like TalkOrigin that helped me become a creationist even more than creationists themselves.

But I was discussing NS, not creation/evolution. The NS I need just as much as 'you' do, but keeps slipping through my fingers :(
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