It's like a bit from The Smoke Ring (or Integral Trees) by Larry Niven, where a very weird planetary configuration made a human-habitable ecosystem out of an or

It's like a bit from The Smoke Ring (or Integral Trees) by Larry Niven, where a very weird planetary configuration made a human-habitable ecosystem out of an orbiting ring of gas. [0] The locals refer to "East" as in the direction of orbit (prograde), "In" as towards the central star, and teach their children: "East takes you Out, Out takes you West, West takes you In, In takes you East, North and South take you back." [0] https://kaiserscience.wordpress.com/physics/gravity/physics-of-the-integral-trees-and-the-smoke-ring/ https://kaiserscience.wordpress.com/physics/gravity/physics-...