If the study of physics shows that nature is a closed system and it is, strictly speaking, a scientific fact that miracles and freedom are impossible, then it would seem that a theist could not do physics well. But what about the fact that there are and have been successful physicists who believe in God and freedom? Apparently theism did not keep George Lemaitre from discovering the big bang! If, on the other hand, one's ability to do physics is not adversely affected by theism etc., then the exclusion of miracles and freedom is not so much a scientific fact as as a philosophical inference--or perhaps an act of faith.
Integral to Dembski's idea of specified complexity (SC) is the notion that something extrinsic to evolution is the source of the specification in how it develops. He compares SC to the message sent by space aliens in the movie "Contact." In that movie, earthbound scientists determine that radio waves originating in from somewhere in our galaxy are actually a signal being sent by space aliens. The scientists determine that these waves are a signal is the fact that they indicate prime numbers in a way that a random occurrence would not. What is interesting to me is the fact that Dembski relies upon an analogy with a sign rather than a machine. Like a machine, signs are produced by an intelligent being for the sake of something beyond themselves. Machines, if you will, have a meaning. Signs, if you will, produce knowledge. But the meaning/knowledge is in both cases something other than the machine/sign itself. Both signs and machines are purposeful or teleological...
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