The possibilities of urban and vertical agriculture are fascinating. These systems have the potential to rewrite the rules about what crops are grown where. They have the potential to solve transportation, water, and land availability issues.
A large downside? These systems are truly factory farming and could require large capital investment.
AND! As someone long-involved with pest management, I am convinced these systems are more sustainable to castostrophic failure from pest infestations and pathogenic pandemics.