I'm guessing you eat a lot of meat and/or fresh produce? There are plenty of foods out there which keep for longer than 48 hours: canned foods, crackers and ot

I'm guessing you eat a lot of meat and/or fresh produce? There are plenty of foods out there which keep for longer than 48 hours: canned foods, crackers and other dry goods, and so on. They might not be as tasty, but keeping a decent food supply doesn't really require constant refrigeration. The point about cities I'll give you to some extent: a city with very high population density is generally dependent on a much larger total rural area which supplies them in exchange for economic support. If the loss of power also kills all transportation, you're doomed. But our current transport infrastructure generally includes autonomous non-electric options even where public transport is primarily electrical (trains etc). You can pay someone to bring you food from outside the city without needing a network connection. Really this reinforces my point above about currency though: absent an uncompensated intervention (ie government), a city which loses its power and connectivity must have some medium of exchange to pay for its food supply to be transported in, and to get itself back on its feet. Some non-electronic medium (ie cash) is essential in these cases.