Consider for example the callous. It does not code-in unless the person puts a stress on the epidermis for an extended period. This adaptation is similar to what Darwin discovered in the Finch beaks. Within the programming of the Finch was an ability to adapt beak strength and size to accommodate the conditions. When conditions reverted back, the Finch beaks followed suit, just as a good program would allow for. However if Shumaker-Levy struck the earth, beak strength wouldn't mean too much (it happened to a planet in our solar system within our geologically insignificant lifetimes).
BTW, what does gene duplication followed by modification provide?
1. This is an example of argument from incredulity, because irreducible complexity can evolve naturally. Many of the proteins in the bacterial flagellum or eukaryotic cilium are similar to each other or to proteins for other functions. Their origins can easily be explained by a series of gene duplication events followed by modification and/or co-option, proceeding gradually through intermediate systems different from and simpler than the final flagellum.
These guys are trying to convince the great unwashed that because the parts could be interchangeable, they can logically assemble themselves into a mechanism of miraculously complexity. The design of the flagellum cannot come about with the concerted efforts of the entire scientific community (creating the chemistry that would assemble and maintain these strings of proteins into a functioning nano machine like the flagellum is way beyond our capabilities), and yet T.O. claims that because certain proteins are floating around performing other functions, the over 20 piece puzzle will self assemble (unlike the Infinite Monkey Theorem, chemistry removes the font from the page as the hammer retracts). Think it through man.
The human diseases that cripple and kill an increasing percentage of our population demonstrates that the evolutionary model being pawned is not making advances in beneficial characteristics. Considering the number of people that I know who would die if not for modern medicine, nature is failing miserably. And modern medicine is wearing boxing gloves in a china store, even with all of our directed intelligence.