I tremendously dislike the notion of “irreducible complexity”. It is an unnecessary hypothesis. And it has negative implications for science, philosophy and theology.
A number of evolutionary biologists accept the concept of irreducible complexity (e.g. Massimo Pigliucci,
“Design Yes, Intelligent No”: “…Behe does have a point concerning irreducible complexity. It is true that some structures simply cannot be explained by slow and cumulative processes of natural selection … irreducible complexity is indeed a valid criterion to distinguish between intelligent and non-intelligent design.”) Again, it’s not a metaphysical proposition or an attempt to explain the nature of reality at the highest and deepest levels of order. It’s not a theological concept either. It’s merely based on observations of nature – it’s a metric or a model by which evolutionary claims can be measured.
Some evolutionists claim that IC systems are predicted by evolutionary theory while others claim that IC is a useful concept but that there are no IC systems in nature (yet another of the many contradictions one will find among Darwinian theorists).
In any case, I can’t see a good reason to “tremendously dislike” the hypothesis of irreducible complexity in nature. I could see “disagree” or “argue against” it – but to take it to the level of “tremendous dislike” seems to be a reaction far out of proportion to what the concept is looking at. Here also you claim that the modest concept of IC has “negative implications” for philosophy, theology and science. But what about Darwinian theory? Does that have any negative implications for those fields of study in your view? Additionally, are you willing to judge the “implications” of the IC concept, but not judge the “implications” of Darwinian theory? It seems like a double-standard to me.
If Darwinian theory is falsifiable at all, then something like IC systems are necessary. IC actually takes Darwin’s metric for falsification and puts some detail around it (Darwin said that if there was anything in nature that could not be the result of gradual modification then his theory would be falsified).
Michael Behe moved from the evidence he evaluated in IC systems, to his book looking at the Edge of Evolution – to see what the limits of natural selection really are. This came about because so-called refutations of irreducible complexity claimed as “evidence”, whatever imagined evolutionary paths his opponents wanted to create.
Of course, to say it’s “impossible” that something evolved omits the “possibility” that a hundred macro-mutations occur in an organism simultaneously and radically change the function of one thing to another. That’s what saltations can do for you. So again, how could evolutionary theory be falsified when all that is required to validate it is an active imagination?
As a side note, it’s quite interesting that evolutionists simultaneously claim that irreducible complexity is not science because it cannot be falsified, and then they produced papers testing the concept and claiming it was falsified. In fact, it was “falsified so good” that they said it was “demolished”. This, however, did not stop the production of subsequent scientific papers that “demolished it even more gooder”. In none of these demolitions did anyone show a detailed, testable evolutionary path for even one of the many IC systems identified. But again, as long as someone claims that it “could have evolved” – then that is sufficient to show that it did evolve.
The same must be true of other evolutionary hypotheses. As long as it is claimed that it “could have evolved” then this proves the hypothesis to be true.
“The history of organic life is undemonstrable; we cannot prove a whole lot in evolutionary biology, and our findings will always be hypothesis. There is one true evolutionary history of life, and whether we will actually ever know it is not likely. Most importantly, we have to think about questioning underlying assumptions, whether we are dealing with molecules or anything else."-- Jeffrey H. Schwartz, Professor of Biological Anthropology, University of Pittsburgh, February 9, 2007