Our solar system is structured much like an atom, what if our solar system was just an atom in the compound we call our universe? That would make earth an electron, comets valence electrons, and us so small that current technology wouldn't be able to detect us. Everything would stay the same, until some big bang of chemical sorts reorders everything we know as our universe with another universe. In other words, don't be so small minded. Most of the universe is made of "dark matter", or "shit we can't see" because we're only able to visually observe a small amount of the electromagnetic spectrum. To think we're alone, is very naive. I saw this article yesterday, very interesting that this would happen around some of the biggest potential energy sources on Earth.