I’m not going to be reading or responding to PauLol’s posts any longer, because it’s simply stupid to debate creationists. When he writes that he “doesn’t see the evidence,” he really means, “I
won’t see the evidence.” But creationists still like to debate, because they hope to sow doubts in the minds of people who don’t know that much about evolution and aren’t really in a position to assess competing claims. To sow these doubts, creationists deploy an arsenal of dishonest debating tactics: Erecting and attacking strawmen, moving the goalposts, changing the subject, demanding evidence and when given the evidence demanding yet more, and so on. A perfect example of how creationists behave is found in the first paragraph of the whale evolution essay at Talk Origins,
here
Still, for any interested, I thought it’d be worth focusing a bit more on some of things PauLol has said and claimed in this thread. I wanted to focus on this particular inanity:
Rapid evolution is exciting. I checked this one.
Well, the poison selected out cockroaches that tasted glucose sweet and selected in those that tasted glucose bitter (so good for their teeth, too). Great, David. You deserve some pats on the back (just kidding). Like Morgan said, evolution means producing new things, not more of what exists.
In addition to the manifest dishonesty of this post, note the smug condescension, the cloying little “gotcha” attitude, the unwarranted high self-regard — and, most important, that his claim is
utterly wrong.
The cockroach glucose-aversion behavior is a
spendid example of evolution in action — indeed, it’s a
textbook example of evolution, along with my earlier example of the nylon-eating bacteria.
Notice again two things he wrote: “Rapid evolution is exciting.”
Full stop. How does he define “rapid” in the context of evolutionary change? No definition is given.
Then he finishes up, after deploying his smarmy condescension, with what he fantasizes to be his killer rhetorical garroting: “Like Morgan said, evolution means producing new things, not more of what exists.”
What does he mean by
new things? He gives no answer. This is called
moving the goalposts. I give him a textbook example of evolution in action, and
the goalposts are moved — now he demands that evolution produce this mysterious, ill-defined “new thing.”
New — how? Something
completely different from, and unrelated to, all that came before? Or — maybe a dog giving birth to a cat?
If either of the above were to be observed happening in nature, the theory of evolution would be
falsified, not confirmed! The cockroach example, however, is exactly what the theory
predicts.
Here is a good working definition of evolution: Incremental change in gene frequencies over time, primarily because of natural selection and genetic drift. Here, under the correct definition of evolution, the only thing
new from generation to generation is a changing gene pool. That’s it! And that’s exactly what happened with the roaches, via random mutation and natural selection. Textbook evolution!
If by “new” he means “big changes in a very short time,” THAT kind of “rapid evolution” simply does not happen — in fact, again, if that
did happen, the theory of evolution would be
falsified. Big changes take a
long time, by human standards, to happen in evolution. The land mammal to whale evolution took about 15 million years — far outside the human time frame, but a mere drop in the bucket in the much more extensive geologic time, the arena of “deep time.”