The big question, is the big bang, and science is silent on that, until a zillionth of a second afterwards, and then there's no shutting them up!
But in any debate on religion/God/I.D. this question must be addressed surely?
And then there is evolution, which is a faith also, unless you have a Phd in fossilised amoebas, and then by some complicated convoluted argument, convince yourself it is true.
How long does it take to explain a proo of evolution to the average teenager? If it's more than half an hour, then there's something wrong.
We, the 'great unwashed,' need a proof in laymans terms that is easily understood, for it to be true. Otherwise, the scientist becomes the high priest of his own religion.