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is this a joke? yes, there is obviously a loss of energy and material as waste when go a step, just like in real ecological networks where one animal eating another does not absorb everything its body has to offer for nutrients

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It's not a joke, because people continue to eat inefficiently higher up on the food chain.

We aren't so starved so as to have to prioritize eating efficiently, people will eagerly prioritize aspects of taste and eat inefficiently, and it's great that they can do that - it would be horrific and a symptom of unacceptable overpopulation if people couldn't afford to eat "inefficiently" and would have to resort at eating whatever as long as it has sufficient nutrients.

Animal agriculture is a major driver of climate change, so we are already at the point where food choices made a significant difference.

Thankfully, there are plenty of great tasting plant-based foods.

i’ll take my farmed salmon and you can eat what you want, including the bony and not very tasty feed fish if you so desire

I’d be willing to eat more meat to reduce the population of carbon producing animals.

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