Tomorrow god will come down to earth and take us all to heaven. You can have faith in this, but you probably don't believe it.
You have a good point on the "belief" based on scientific study and inquiry versus "belief" based on faith. But the problem is where you believe the concept of faith is derived from. I feel, you don't understand faith in the same way that I do. I'll explain faith as it is to me. In the same way that when you wake up tommorow, you have faith that there will be gravity. I have faith that tommorow if I wake up (god willing), I will be judged for all of my actions.
So the conviction in our faith, as you put it, are equal. Yours is not greater than mine, and mine is not greater than yours. So arguing against my beliefs, through the amount of certainty in our beliefs based on our perception and understanding, is a fallacy in light of my explanation.
Thus your criticisms should not be directed towards the convictions of the belief, or the degree of certainty (unless in the case of extremely absurd beliefs such as the one you mentioned prior), bur rather on the justification or what leads us to hold such beliefs.
You believe that when you wake up tommorow gravity will still exist, because out of 20 or so years of your life, it has always been as such. We also understand and can prove with almost absolute certainty that gravity exists due to the nature of the universe, and thus we can predict it will continue to do so tommorow. It's very simple, and thus quite justifiable. Now in my belief, through giving meaning to life and existence, I too have come to a conclusion very simply through testing the nature of the universe, and just as yesterday the only viable explanation for the existence of the universe is an entity which exceeds the physical boundaries of the universe, tommorow such an entity will still be the only viable explanation.
And by defining that, and also by understanding the fascinating nature of the Glorious Qur'an. Without a doubt in my mind, I believe it's validity. Based on simple experiments, and logic, and the nature of the universe.
Religion and Science are not mutually exclusive.
Massive difference between a scientific theory, which hasn't been proven wrong
Scientific theory is proven wrong on a daily basis. The method of theorems, and the compilation of scientific theory is also inherently flawed, irrespective of whether or not it is based on tangible evidence. So you don't have a leg to stand on with that argument. (I expect you to rescind it.)