The Logical Outlook

I can honestly say that I don't know if a God exists or not, but what I can honestly say is neither can anyone else.
Sure, you can have faith that there may be a God, but why believe so strongly in it if there's no way you can truly know?

Last night, I had quite an interesting debate with a Muslim friend of mine on the existence of an almighty omnipresent being. He argued that his religion is the most logical as its Holy Book (the Quaran) explained embryology and other sciences (believed to be unobservable until the late 1800's) over 1,500 years ago. He also believed that his God wrote it himself.
He also argued that his book didn't ask its believers to cling on to any sort of futile blind faith, but instead gave logic to what it explained (unlike the Bible or the Torah).
It's certainly the most believable and feasible of all the Holy Books, I'll give it that much, but to argue that some unseen, unproven omnipresent being literally wrote the book himself is more than simply far fetched.

He explained to me that the first thing he was taught about Islam is that 90% of it is logic, while another 10% is faith. The fact that you need to rely on any sort of blind faith in general seems like Islam had quite a logical way of seeing and dealing with things right until it ended up at the roadblock of how things came to be, where it had to pitch that it was all intelligently designed by a God.
He claimed everything was to perfect to have been created by coincidence; I agreed, but also pointed out that nothing in the world was perfect. Everything, both in the observable universe and in unobservable philosophy, has falls and flaws, most of which you would think would have been left out of the mix by any intelligent designer (especially one who's said to be perfect).

He seemed to notice that I brought up quite a valid argument, and as such seemed to be pointing his argument in the direction of credible sources as opposed to his own logic.

This is how I see the universe and, in general, everything in existence: there's no intelligent designer and there's no almighty being overlooking everything we do. Everything we perceive as 'to perfect to have been coincidence' would, in reality, look like nothing like an indecipherable scribble on a piece of paper to an alien or even a human baby. The reason it seems so 'perfect' to us is because it's all humanity has ever known, and as such we've gotten used to it.
Yes, it's quite amazing how certain things interact with other things to cause another thing, but I don't believe it was ever meant to be that way; everything slowly adapted to come together to become vital parts of the system we call life. Prior to a certain point in our evolutionary cycle, we were useless and contributed nothing to the Earth. We slowly developed and carved out a niche for ourselves in the entire cycle of life.
Here's an example of what I mean (it may not be the perfect example, but it's all I could think of): there are four dice in a sealed container. For arguments sake, lets pretend they're alive.
Each contributes nothing to the other, or to the area to which they've been sealed within, but over time, they slowly come together. Very slowly, each evolve to create a working system of existence.

True, I could be wrong, but as I see it that makes more logical sense then any intelligent designer.
The point is, there's no way anyone could have ever known if a God exists or not. You know how I know that? Because (like Bill Maher said) no one else has ever possessed any mental abilities (to which would tell/inform them of His existence) that I don't posses at this very moment.
So, as I see it, if I don't know, neither does anyone else.