Create a science fiction based world where portals are the main way of travel.
What are the limitations of portals?
What is the science/history of the portals?
How does extremely large number or small numbers of people travel through the portals?
Create a science fiction based world where portals are the main way of travel.
What are the limitations of portals?
What is the science/history of the portals?
How does extremely large number or small numbers of people travel through the portals?