Life and Fine-tuning of the universe.

I need to get something straight once and for all concerning this notion of fine tuning of the Universe. I am hoping someone such as Eta Carinae could bring forth some numbers concerning this topic.My question centers around just how finely tuned are the parameters involved in this arguement? What degree of latitude do we have on these and still have the possibility of life?My second and more pertainent question is why do we make the statement that the universe is finely tuned for life when the only real evidence we have for it indicates that life is exceedingly remote in the universe as a function of the size of that universe?The staggeringly enormous vastness of the universe is occupied by life in a exceedingly minuscule point of an unremarkable speck of space-time and its conscious life forms have raised the idea that the universe somehow cares if life is existant at all?Is there not just a hint of massive arrogance involved here?

I think one of the causes of my distress at the idea of the universe being fine-tuned for life is if this were the case would we not then expect to find life in the vast majority of the cosmos?
To state that we on Earth out of the entire cosmos constitutes a fine-tuning is wrong since we would expect that such a event to be unique in the universe would mean that things are not fine-tuned for life.

Bump to recieve present arguements on finetuning of the universe in other topics.

General Nazort So the notion is all the universe was necessary in order to produce our life forms on this exceedingly tiny speck of dust in the cosmos?
What if other forms of sentience are capable of existing in another set of fine tuning parameters that we cannot exist in? The question is open until such time as we can produce conditions similsr to that other realm without killing ourselves in the process.