sol invictus
Philosopher
- Joined
- Oct 21, 2007
- Messages
- 8,613
No, I disagree about this. It's part of that distinction between evolution-the-fact (which was quite established before natural selection was proposed) versus natural-selection-the-mechanism.
Intelligent Design does not dispute the existence of evolution. It is the rejection of natural selection as sufficient to explain new features.
And yet we have hundreds (thousands? more?) of examples of life evolving under selection pressures. I think part of the problem is that the creationist position is simply incoherent nonsense, which makes it difficult to argue about.
Behe is correct to assert that it's impossible for all the mutations we associate with a new function to happen simultaneously. However, it's a strawperson, because neodarwinists do not make this claim anyway. Scaffolding and redundancies are just two of many sensible explanations for how a new feature can arise from a longitudinal sequence of non-beneficial mutations.
There was a long and useless thread here involving a creationist named kleinman. His/her main point was that evolution is impossible because the odds of all those mutations happening at once is too small. But as I was trying to say, it's obvious to anyone with a feel for probabilities that this is only because you required that they happen all at the same instant. If you spread out the instant a little, it becomes far less unlikely.
I disagree. Even given large numbers of mutation events, the statistical likelihood of multiple simultaneous mutations gets small enough to be considered impossible.
You have to be very, very careful with that logic. The odds that you, blutoski, exist just exactly as you are are essentially zero - and yet you exist. Do we need an explanation for that?

