Crops can blight, animals can get diseases. I donโt know much about hydroponics but I know that bacteria are a concern. What food source is the most reliable, the least likely to produce less food than expected?
Pretty sure thatโs actually just a reference to the film Soylent Greenโฆ
I know youโre not really being serious, but it doesnโt really. I considered the logistics of this for an RP I was running and it doesnโt add up. You need way way way way more food to grow a human being than the human being provides in food when theyโre dead. At most, being very very generous, you could meet 1% of a societyโs food needs with cannibalism. And thatโs a really high estimate. Itโs really more of a special treat than a daily diet!
Itโs so inefficient you may as well just leave the population to starve, nearly the same effect for much less work!
Theyโre making our food out of people, next thing theyโll be breeding us like cattle! for food!