Every world has its physical properties: Sunset/Sunrise is a desert terrain. It's a world but not necessarily a planet. Possibly round or flat or both, or neither. Time is suspended at dawn or dusk. Death is undefined. Sometimes, long shadows travel around, as the main light source (perhaps a sun) glides below the horizon, but never across it. Gravity is optional. Water is optional and an algorithm replaces thirst. Eating is minimal. Like a graveyard for all the hardware and software ever created, objects from Earth end up in Sunset/Sunrise. The traveler steps into a minefield, explodes and reconstructs oneself. No mail system. No wireless. Love letters are written and left behind.
