• Den
    4
    What if we didn't consume living things? Suppose our consumption was limited to the chemistry needed to provide energic components. Our brain: Does it need living input, like meat, grass, or oats, or can it survive on chemistry, like oxygen, nitrogen, and non-organic matter?
  • Pfhorrest
    4.6k
    We eat things to get those chemicals. In principles our brains and bodies could survive just fine on synthesized versions of all the appropriate chemicals — if we could get them like that.
  • Den
    4
    How do you know?
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