Local food systems get romanticized as the sustainable answer, but I'm not convinced they scale well for cities like mine. Farmers markets here have waiting lists for stalls, and the premium prices mean only higher-income neighborhoods can support them. When I tried buying exclusively local for a month, my grocery bill jumped 40%, and I still needed imported grains. Could decentralized urban farming realistically replace a portion of supermarket supply, or are we just creating a niche for the wealthy?