Evolution
"It's counterintuitive but simple: complexity increased because protein functions were lost, not gained," Thornton said.
"Just as in society, complexity increases when individuals and institutions forget how to be generalists and come to depend on specialists with increasingly narrow capacities."
Thornton proposes that the accumulation of simple, degenerative changes over long periods of times could have created many of the complex molecular machines present in organisms today. Such a mechanism argues against the intelligent design concept of "irreducible complexity," the claim that molecular machines are too complicated to have formed stepwise through evolution.
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They are saying that as a creature "specialize", they lose function. That's specialization is actually "focused" and not newly developed. Exactly the opposite of what right wingers believe is evolution and proves how "magical creation" or "intelligent design" doesn't happen.