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Comment Doesn't scale well (Score 1) 188

Place them in a bioreactor with nutrients.

And where do these nutrients come from? Highly processed products of plant material? Derived from petrochemicals? We harvest and grind up "undesireable" species?

Cattle (and many other grazing animals) obtain their nutrient inputs largely from wild ecosystems. Where the biodiversity is not damaged to the extent that other types of farming produce. They spend most of their lives grazing in open fields with little more than fences erected.

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