Posted: Jan 06, 2015 4:13 pm
Thommo wrote:Sorry, the conclusion doesn't follow there either.
The argument doesn't show anything about the relative probability of a God-designed universe compared to a not God-designed universe.
It doesn't purport to show that.
It tells us whether the particular evidence we have, ("fine tuned constants that allow life") is more probable on a designed vs non-designed universe.
Given that all non-designed universes with life would necessarily have such constants that allow for life, the probability that we should observe such a set of constants in a universe with life if it was not designed, is 100%.
This is NOT the case on the designed by a god hypothesis. Here such a condition is only a subset of the full set of possibilities, so it CANNOT be 100%.
Therefore all else being equal and given that we observe "fine tuned constants that allow for life", this evidence is more probable on the not-designed than it is on designed-by-god hypothesis. Therefore when we observe fine tuning, all else being equal, fine tuning is evidence against creation by god.
Sorry, there's no flaw in the logic here.