[gurps] Farming without dry land

[Onno Meyer]

What are humans on a water world going to eat?

* One option would be to eat fish, kelp and all 
  that. Not exactly exciting, and it comes from
  the alien biosphere - does it include all 
  necessary nutrients and nothing harmful?

* The next option is halfway traditional farming
  on floating platforms. The published rules for
  farm modules are for space stations, 50,000 cf 
  and 400,000 lbs. per person. Doing it in open 
  air should be easier, but how much?

* Finally, total life support provides food as 
  well as air. It is available from TL7 up, at
  200 cf and 2,000 lbs. per person or less. The
  rules don't really say if that is algae glop 
  or truly edible food, but I guess the quality
  depends on the TL.