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Irreducible Complexity

Karsten Pultz offers some thoughts on the flap over the now-famous Thorvaldsen and Hössjer paper

It should also be considered that in his book Der Teil und das Ganze, Werner Heisenberg expresses his own and also Niels Bohrs’ doubt that random mutations could have produced any of the complex biological systems... Bohr adds that while natural selection obviously occurs it is the idea that new species come about by random changes, which is very hard to imagine, even if this is the only way science can explain it. Read More ›

The bacterial flagellar hook as a universal joint

A friend points out that the paper just describes the intricate machinery of the hook, adding to what we know, without any resort to Darwinspeak. It seems to be getting safer all the time to just not talk that way any more. Read More ›

Behe vindicated by goldfish? But of course!

We see devolution all the time with unintelligent causes. Animals gnaw a hole in the bottom of a jug of water and they get some water but the rest is wasted. They destroy the feedhouse door trying to get into the feed because they don’t know how to use the doorhandle. They do get fed but the feed is scattered and much is wasted. *That’s what an unintelligent cause is typically like.* Put another way, the animals won’t learn to use the doorhandle or the jug cap. But just to survive and reproduce, they might not need to. Read More ›

Behe was right: Bacteria eject flagella to avoid starvation

Here’s an example of what Michael Behe is (actually) talking about in Darwin Devolves The evolution strategy “Break or blunt any functional coded element whose loss would yield a net fitness gain”: Eleven authors writing in PLOS Biology found that “γ-proteobacteria eject their polar flagella under nutrient depletion, retaining flagellar motor relic structures.” When there’s nothing to eat, these bacteria are willing to toss off their flagella and plug the hole in order to save energy. If you were out on a lake, would you unlatch your new Yamaha F250 4.2-liter V6 outboard motor and let it drop to the bottom? You might if the boat was taking on water and was about to sink, and you were about to Read More ›

Paul Davies: The really tough question is how life’s hardware can write its own software

Davies, author of The Demon in the Machine: How Hidden Webs of Information Are Finally Solving the Mystery of Life thinks we overlook the difficulty and offers a solution: Nature got there first. Read More ›

Determining Irreducible Complexity Using Power-sets

Ever since Michael Behe published Darwin’s Black Box in 1996, the concept of irreducible complexity has played a central role in the debate over Darwinian theory. I am proposing a new, theoretical method of determining whether a system is irreducibly complex using power-sets. First, however, it is necessary to define irreducible complexity. Various definitions of irreducible complexity exist. Michael Behe defines it as “a single system which is composed of several interacting parts, and where the removal of any one of the parts causes the system to cease functioning.” Critics have noted that this definition is actually a definition of interlocking complexity, a concept H. J. Muller had written about years earlier and which is perfectly compatible with Darwinian theory. In Read More ›