(cont'd from yesterday's post)
Dr. Behe kept his eyes open for theories of how the living cell could have developed by simple processes found in nature. But, to this day, there's still no good origin-of-life/cell theory. He explains in the video below why its complexity makes him think there had to be more involved in creation of the first cell.
Think of a mouse trap. It has five parts, each of them essential to the trap's function. If any were not there, the mousetrap would not just function poorly, but rather would not function at all. So Dr. Behe calls it "irreducibly complex." That's the sort of complexity he finds in parts of the cell.
For example, there's a flagellum on one end of a bacteria cell that has parts made of molecules. It spins around to propel the bacterium on its search for food. An elegant machine, its motor has been clocked at 100,000 revolutions per minute.
Its parts correspond to the parts of an outboard motor. The flagellum can't operate if any of its parts are missing. It's "irreducibly complex." Could it have been built by random, unguided forces, one stage at a time?
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