Saturday, October 10, 2009

QUESTION OF THE WEEK! - Has irreducible complexity been disproved?‏

Q: Has irreducible complexity been disproved?

A: The titles of two recent science news articles caught my attention, “More ‘Evidence’ of Intelligent Design Shot Down by Science” and “Intelligent Design ‘Evidence’ Unproven by Real Science.” The evidence in question is a molecular machine. Members of the Intelligent Design Movement and creation scientists have often stated that molecular machines are irreducibly complex and could not be formed by evolution. However, evolutionists now claim the mechanism of “pre-adaptation” is a way that these molecular machines could have evolved.

Molecular machines are complex structures located inside of cells or on the surface of cells. One popular example is the bacterial flagella. This whip-like structure is composed of many proteins, and its rotation propels bacteria through their environment. The molecular machine of interest in a recent PNAS article is a protein transport machine located in the mitochondria. This machine transports proteins across the membrane of mitochondria so they can perform the very important function of making energy.

Molecular machines are considered to be irreducibly complex. An irreducibly complex machine is made of a number of essential parts, and all these parts must be present for it to function properly. If even one of these parts is missing the machine is non-functional. Evolution, which supposedly works in a stepwise fashion over long periods of time, can’t form these complex machines. Evolution is not goal-oriented; it cannot work towards a specific outcome.
Continue reading as Dr. Georgia Purdom defends cellular design in The End of Irreducible Complexity?

News to Note Quick Look

A cache of cash: Archaeologists may have found evidence for the Joseph of Genesis in Egypt, a news agency has reported. Read more.

A cache of eggs: Scientists have turned up dozens and dozens of dinosaur eggs in southern India, BBC News reports. Read more.


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