Broad Boundaries

The borders that contain most of our story-world is the dome on Pam. Inside the dome is an island, that's isolated by and ocean. No-one can travel across it, except for the scientist controlling the experiment. Outside the dome, our story-world borders are confined by the colonization ship's size. While it's true most of our stories don't move beyond these two settings, there are some narratives that take place on earth before it's destroyed and on planet Gaia much later. There is, of course, always room to expand into outer space. It's a big place.