Ponder this, co-habiting the human body is more organisms than are cells that comprise the human. And they contain more genetic information than the human they inhabit. perhaps we are the waste. We were created and exist to provide a host, food source and locomotion for the human biome.
Human microbiome - Wikipedia
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"You were not there for the beginning. You will not be there for the end. Your knowledge of what is going on can only be superficial and relative" William S. Burroughs