Crops can blight, animals can get diseases. I donβt 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?
Itβs so inefficient you may as well just leave the population to starve, nearly the same effect for much less work!
Youβre going to have people anyway, and theyβre going to die. We just need a process to make their deaths a d resulting disposal as productive as possible. We could set an optimum age limit; maybe gameify the process, and package it with respect and nobility. We could give it a pleasant name - something like βCarouselβ maybe.
Weβre looking for balance, not a Buddhist sort of minimal impact.