Quote:
Originally Posted by Flyndaran
That assumes usable energy from waste humans were unable to acquire and that the mass will what, just disappear? At best, it's still a "full diaper" after a day or two even if ultra tech makes it so it won't cause illness or rashes.
But like I said, icky aspects of biology almost always get swept under the rug with science fiction even more so than most modern or low tech settings.
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Yes, it is not like human and animal waste has ever been used as fertilizer for plants... I mean if they had been then there might be a possibility for ultra tech plants that are modified to be more efficient at that.