So, Excellent Lodestar, what's more efficient, growing 1kg of apples or 1kg of beef? Even vegan agriculture might not be perfect, but it is on a far lower scale and is much more sustainable than growing meat.
And, I don't know if this is an argument in the book, but saying we need these animals to give back nutrients to the soil is rubbish too, because then that soil is just used to grow more grain to feed back to the animals. They don't produce more nutrients than they eat. Besides, livestock aren't the only animals that create faeces.
Smoking 100 cigarettes is bad for you. Smoking 1600 cigarettes is bad for you. Neither are sustainable so I may as well just smoke them all. I don't know if that is the message the book gives or what you were trying to say, but that's how I interpreted it.
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