The universe is infinite. It is incredibly huge. There are an infinite amount of planets in this universe. However, they are not all livable, such as Venus, Mercury etc. But there are a finite number of habitable worlds. This means that there is a finite number of people (well i should say "living organisms" but for arguments sake lets call them people - they probably all have feelings too). Therefore the population density of the universe is finite/infinite which equals zero. So there are no people in the universe. This means that no-one in the universe exists and that everyone else is figment of my imagination. An imagination that you have no control over. Although from your point of view you will believe that everything is from your point of view and you are in fact imagining this website and my imagination. This explains a lot of things. It is also the best theory because any arguments that prove it wrong are a figment of my imagination.

This may give you a bit of a headache.