Name one concept of irreducible complexity that hasn't been refuted. Just give one example of some mechanism that can't be reduced to a simpler mechanism. Just one mechanism that could not have evolved from something else, that must have been placed there by some intelligence. Just one.
That's not gonna work, kiddo.
The burden of proof is on those who say that mutation and natural selection is capable of producing multi-protein systems to demonstrate this so.
They've done no such thing.
Have they speculated? You bet your sweet *** they have. But, again, speculation is not actual science. You can try to talk yourself and others into believing that Darwinian evolution has the creative power to engineer these complex systems, but until you actually demonstrate this creative power, Behe's stinging challenge will remain unmatched.
Also, one more correction. The issue isn't that the evolution of multi-protein systems is
physically impossible -- it's not. It would violate no known physical law.
The issue is that it's so implausible as to be logically impossible. Random mutation must first create the functional proteins which make up the system, and then assemble them into the actual system. This isn't happening, and Darwinists know it, too, which is why they're absolutely terrified to actually test it in the laboratory, and, instead, cling to their wild and loony speculations.