I do not believe in anything blindly, I believe in bitcoin because it has all the characteristics of a ground breaking invention, bitcoin is no perfect but there are a lot of things that it does right, and that is what makes bitcoin the best currency to have in the entire world.
No it is perfect enough that is the reason it is marching toward the best online currency. I guess you are claiming not perfect based on scalability issue but in my view it is common for any coding not to foresee future requirements. Moreover in initial versions, Satoshi designed with 32 MB blocks but after that he changed into 1 MB just to simplify setting up full node hassles.
I guess within next one week of time, you too will agree bitcoin is perfect as everything about scalability might have sorted out by then. By considering all these, investing right away into bitcoin is highly recommended.