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How much energy and water does it take to grow the cells? Are there any environmental benefits here or are the benefits primarily ethical? The article mentions the potential for decreased emissions but I've yet to see hard numbers about how much waste these products produce.

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It has to be more efficient eventually, animals waste energy moving around, breathing, excreting, etc. This completely wipes that out.

It's probably less efficient than regular livestock now but will be more effecient later, since when you are optimizing for meat instead of meat plus legacy biological life form, you skip the energy that goes into bone, brain, etc.

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