>>14202549There's a birth defect found in just about every animal called anencephaly. Sometimes there's still a brainstem, which keeps the heart beating and lungs breathing, but otherwise it's completely braindead. Other times there's no brainstem and it's just considered dead. Genetic engineering it to guarantee that happens is relatively easy, you just don't let the brain grow.
>>14202574>looks really inefficientNo, it looks like it works without trying to synthesize meat from a vat, which is currently far less efficient just feeding an animal and letting it grow on its own.
