How can you believe in nothing?

Hi, hello. This is a topic that has boggled my mind for a long time. How can someone not believe in anything at all? I mean looking at the world around you you have to think that somehow it came to be. Even the scientific method is better than believing that we are just here. No real idea why we are here but we are here and this is just what life is. I just can't comprehend how looking at the complexity of the Earth and seeing how everything is exactly perfect for us to sustain life and yet people don't see it. Even the human body. It is incredible how we first of all form and then grow and develop and eventually die. The body does essentially everything for us. I just can't understand how you can look at the world and not believe that it was created by nothing and just somehow got here but they are too lazy to decide how.