I had another thought on the issue of fine tuning that although somewhat peripheral to it, i think is important and I'd like to get your opinions on it.
Most theists would assert that miracles do occur and in every purported case of a miracle that I'm aware of, a miracle is only ever a good thing. E.g.: a bus carrying 12 people crashes but 1 person survives completely unharmed - the assumption made by theists in this example would be that if no miracle had occurred then all 12 people would have perished.
That is to say that it is believed that a miracle occurring will always result in a more optimal outcome (assuming life is generally preferable to death) than if no miracle occurred. (Lets ignore for the moment the 11 people in this example that did not survive the crash)
In my experience the word miracle is most often used to mean a suspension of the laws of nature.
It seems that it would follow then that a proponent of the fine-tuning argument and a believer in miracles would need to amend their position to acknowledge that while they believe the universe was fine-tuned for life, it was not fine-tuned to achieve the most optimal outcomes for the life that inhabits that universe.
If it were then suspensions of the laws of nature performed to achieve a more optimum outcome would be unnecessary.
To put it another way, miracles would not have to occur as frequently (or at all) if our universe was 'designed' more optimally.
While they could argue about what optimal means in this context and why I think I or anyone else (i.e.: not god) should be the arbiter of that definition, the end result in so far as I can tell is that the theist would have to concede either that it is entirely possible for a universe to have been 'designed' in such a way that fewer tragic deaths (using my example) occurred and subsequently fewer miraculous interventions would be necessary, or that the great number of tragedies experienced throughout our history were and continue to be sanctioned by the designer/creator. The latter brings with it many additional questions with regards to why certain people are 'saved' while others are not.
Not a particularly flattering position to have to take :-/
I'd welcome your thoughts on this