To buffalo,
"For example, he argues that systems biology assumes “teleology,” which is to say “top-down” rather than “bottom up” design. As he puts it, systems biology assumes that biological systems were built “starting with a goal, and then working backwards to see what is needed and used to accomplish that goal.” That’s a concise description of how designers operate. He provides a lengthy citation from a 2004 paper by the respected cell biologist
Arthur Lander at the University of California, Irvine, writing in
PLoS Biology under the title, “
A Calculus of Purpose.” You can find the entire passage in the
original paper, including the following striking comment:
In biology we often pose “why” questions in which it is purpose, not mechanism, that interests us. …As a group, molecular biologists shy away from teleological matters … Molecular biology and molecular genetics might continue to dodge teleological issues were it not for their fields’ remarkable recent successes. Mechanistic information about how a multitude of genes and gene products act and interact is now being gathered so rapidly that our inability to synthesize such information into a coherent whole is becoming more and more frustrating. Gene regulation, intracellular signaling pathways, metabolic networks, developmental programs — the current information deluge is revealing these systems to be so complex that molecular biologists are forced to wrestle with an overtly teleological question: What purpose does all this complexity serve?
(Arthur D. Lander, “
A Calculus of Purpose,”
PLoS Biology , Vol. 2(6): 0712-0714 (June, 2004).)
Lander identifies various commonly re-used components in biology — networks that function as a “‘switch,’ ‘filter,’ ‘oscillator,’ ‘dynamic range adjuster,’ ‘producer of stripes,’ etc.” He notes that by recognizing the effects of these common elements, biologists are able to more quickly determine the function or purpose of a system.
I don’t see any evidence that Lander himself is a proponent of intelligent design. But he nonetheless concludes that recognizing the “teleological side of molecular biology” is vital for doing research:
These elements can be seen as the foundations of a new calculus of purpose, enabling biologists to take on the much-neglected teleological side of molecular biology. “What purpose does all this complexity serve?” may soon go from a question few biologists dare to pose, to one on everyone’s lips.
Snoke observes that systems biology assumes that biological features are optimized, meaning, in part, that “just about everything in the cell does indeed have a role, i.e., that there is very little ‘junk.’”