I'm not going to spend much more time on this. I remember why I stopped debating this on-line. You can't get indoctrinated people to use logic and admit what they know to be true and where the are speculating. They are just too committed to their religion.
Pigeye: What do you mean "mechanisms are still being debated?"
As I said in my first post, see Gould vs. Dawkins. More hard evidence, like fossils point to (at least when joined with a materialistic presupposition), and many believe in punctuated equilibrium, which is the theory that evolution occurs in "explosions", or in other words no change for long periods, then one day something occurs in the environment and life transforms quickly, at least in evolutionary terms. This is in contrast to the more recognized "change over time" theory, which makes more sense to the biologist (again with the presupposition thing!), but doesn't match the hard data. The two theories are not compatible. That is why Dawkins and others were so nasty to Gould, b/c it undermined them, but overall it points to what I was saying before. The evidence from different areas of science of what we do actually know to be true in the past is contradictory, at least in terms of creating a "unified" theory of evolution, but the theory rages on, not because of a scientific proof has been made, but because of the commitment to it. If evolution has been proven, wouldn't this debate be solved? The fossil evidence has a similar problem, see below.
PIgeye: And in what way are biologists "just guessing"?
Who limited this to biology by the way? I would call someone who uses a systematic, proven method, like the scientific method someone doing real scientific work, biologist or not. Trying to piece together what happened in the past with extremely limited evidence is someone just guessing. Watch the next time a new fossil is discovered what happens to the evolutionary model. Some species that was once thought to precede so-and-so, now isn't and this new found species is the real ancestor. Don't you see something wrong with this philosophically? How long before some other bone shard is found that contradicts this new evidence and the model changes again? The model isn't deemed true because of the evidence, the evidence is arranged with the assumption the theory is true.
PIgeye: Isn't the fact that there are now strains resistant to penicillin 'proof' of evolution? Where is the materialistic presupposition?
I kept my post simple by calling macro-evolution evolution. No this isn't proof of a new species with new tools, limbs, flagellum, what have you. This is a change with in a species. Go back and listen to Behe again.
I'll make one more point, a little different than evolution, then move on. How can you explain the first cell? Scientists can't put together the most optimum conditions to make a protein develop from it's ingredients, they've tried. Couple this on top of the fact that a protein in open environment dissolves quickly. You are telling me that proteins RANDOMLY formed in the environment to create amino acids that RANDOMLY formed walls and the other cell "organs" and NOT ONLY THAT!, actually encoded within itself a reproductive sequence that splits itself in 2, along with every cell "organ", and does this without subjecting itself to the outside environment enough that it doesn't die! This did not happen! ask a computer programmer.