Wonder how this production mechanism pencils out as a way to feed everyone for years without sun, i.e., relative to other options explored in https://www.approp

Wonder how this production mechanism pencils out as a way to feed everyone for years without sun, i.e., relative to other options explored in https://www.appropedia.org/Feeding_Everyone_No_Matter_What https://www.appropedia.org/Feeding_Everyone_No_Matter_What