ORIGINAL: taltamir
Half of these are basically "food and water"... those are abstracted at the moment... it would be quite a lot of work to add them and balance them... I can see why you would want it. I see no reason to separate then into a ton of different types (meat, grain, flora, fauna, etc)... to produce food you MUST be able to produce large amounts of plant matter, and then you can easily use that to produce meat, etc. So all you really need is enough water, sunlight, and some gasses (oxygen, nitrogen, etc). for large scale production you obviously want a planet that provides all of the conditions (ideal temp, ideal light amounts, ideal water amounts, etc etc)
Tied together with the issue of energy - energy to create food or create water and energy to transport it - and the argument is almost all non-luxury food and water production and consumption in the DW universe (with linear energy consumption to distance) occurs on-planet, or at least in-system, though costs will vary and there will be minerals, tools, seeds, etc. which are high value and will be transported.
