I'm don't think "smaller" matters much in this case. Delivering food from nearby shops is inherently local and can be rolled out slowly. "Denser", however, is

I'm don't think "smaller" matters much in this case. Delivering food from nearby shops is inherently local and can be rolled out slowly. "Denser", however, is often a very good answer. Imagine shoving every person from California into New York state, alongside the existing residents - and then shrinking the state a little. That's the size and density of England.