Why does the universe has to be fine tuned? Why do we think we are the center of the universe and this big thing was created just to suit our needs? In my opinion the cause and effect are reversed. The value of the constants of the universe enabled our creation, meaning that we shouldn't pose the question how is the universe so fine tuned to are need, which implies we need a fine tuner, but why is the universe so. Now to the topic of fine tuned. Everybody says that the universe was specially designed to suit us. I beg to differ. Consider the constants that describe our universe. If gravity was stronger than it is now, the planet will be smaller, life will probably denser, but in my opinion the odd are that there still will be intelligent beings(purposely not using life, the definition of life is too specific in my opinion), witch will ponder why is the universe is fine tuned to there needs.
That was just a exercise in thinking. Excuse my english if you spot a mistake, it isn't my first language, and also if this points were covered already by someone else, I didn't bother to look at all the comments.