I called it "Big Bang" because this is a universe springing into existence from nowhere. If you ever used Second Life you know this moment: You teleport somewhere and see mostly empty space. Then things pop into existence. Some fast, some slow, some are grey first. Then more and more empty space is filled, floors and walls pop into existence, obstructing your view, hiding the open space, blured at first, then more and more focused until you are in a room, in a building, sometimes on a street in a world that looks surprisingly fixed and solid.