Jeff Lowder at Secular Outpost, argues against William Lane Craig's fine tuning argument. His objective is to show that even if the argument is valid it doesn't establish probability for God. Lowdwer's syllogism of the argument: 1. The life-permitting nature of the universe’s initial conditions is either the result of chance, necessity or design. (Premise) 2. It is not the result of chance or necessity. (Premise) 3. Therefore, it is the result of design. (From 1 and 2) This argument is clearly valid, i.e., the conclusion follows from the premises. We want to know the probability of (3). The probability of (3) will depend upon the probability of (2). If we have a very weak degree of belief that (2) is true, say we think Pr(2)=0.25, then, by itself, this argument only warrants the belief Pr(3)=0.25. N.B. I’m not claiming that (2) has an exact numerical probability equal to 0.25; that value is simply an example to illustrate the point. [1] Excluding it as a ...
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