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Pythagoras's Avatar Jump to comment 11 by Pythagoras

The idea of irreducible complexity needs to be hit on the head. The whole idea of irreducibly complex systems as disproving evolution is logically unsound. It just indicates a lack of imagination.

If a system is irreducibly complex, i.e. removing any one part will stop it from functioning; does that imply that it could not have evolved? The answer is NO it does not! The whole irreducible complexity argument is invalid from the outset. Since evolution can add and remove parts, and parts can serve multiple purposes, there is no reason that the parts in an irreducibly complex system evolved for the purpose they currently have. The parts may have been part of another system which originally served a different purpose. The system that the parts evolved to support may have changed or disappeared.

There are plenty of known examples of this kind of thing. The mammalian ear comes to mind. I'm sure biologists could come up with many more.


Sat, 14 Jun 2008 16:46:00 UTC | #183490