Ali phil wrote:
Your own mettaphore is why energy cant be destroyed you can only ever change its state, this implys the universe is ageless and had no begining but we know that it did (the big bang). Fact: If you had a ruler that streached the intire universe and changed gravaty my 1 millimetre the universe would have either colapsed in on itself before and matter could form or would have expanded too fast and once again nothing would have formed, such fine tuning of the universe can shown wih many examples. I know this doesnt mean that oh god is real cos this is so unlikly. But to sombody who has the religious point of view this ruler analigy (Horrible speller sorry) is a bit of a faith booster haha.
How do you know that if gravity were slightly changed in magnitude either way that the universe couldn't have formed? Even if that were true there is still a statistical problem that could be the solution. If given enough time anything is plausible.
So for example, lets say there was a highly dense singularity and it did erupt but the law of gravity was too strong and it collapsed back into itself. Or how about the other way, the law of gravity was too weak and the universe expanded so quick that nothing could form.
Just this simple possibility only points out the flaw in the reasoning when you say that if gravity weren't just so, "fine tuned", nothing would be here. Well that might be true but how do we know there were not other failures? How do we know if there are an infinite potential universes, where some collapse, some expand with nothing being made and we just so happen to exist in one universe where the law of gravity was at the right proportion?
This is why any time I heard the "fine tune" argument I laugh because it presupposes that it only can or happen once. How can you be certain that it has only occurred once?