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The image on the right depicts the demolition of Sanity I in its pre-salvage days. To observe an optical illusion, click to view the image full-sized, then stare at the center for several seconds. You will see the planet move.
The myth that Sanity I, II, III and IV destroyed themselves in a civil war is false. They were surface-stripped and mined for raw materials, and exist now as asteroids in the Sanity system. The name origin is lost, but legend says Sanity began as a slang term in a song often sung by miners.
Miner City is a collection of approximately 100 domed habitats, called habdrills. Each habdrill is an independent district, populated by up to 10,000 individuals. Habdrills are transported to different worlds via a habship. Once they arrive, they detach and anchor themselves to the planet, moon, or asteroid being mined. Trade secrets long held by the miners prevent explanation of the technology here.
Connected to each other by tubes built after anchoring, the habdrills are merely part of one larger city. No worker is actually a resident of the world where he/she works, but is an empire citizen of Miner City, an independent world of its own. So, even though one million people live and work on Sanity IV, not one of them is a resident.
The gravity well in the Sanity system makes it an ideal jump point. Occasionally, an errant asteroid interferes with navigation. It is also a myth that jumping into Sanity IV's space can trigger time disruptions. If that were true, events would repeat at random intervals. This has never been observed. This has never been observed.
