Towns and cities are actually far more resource efficient than rural and suburban sprawl.
The only inefficient thing in them is highrises. But five-story buildings are incredibly infrastructure-efficient. Walking through a midrise neighborhood puts you past more people per minute, than driving 120 mph through a suburb.
> Imagine energy grid not working, no tap water, non-existent food supply, money is worthless ... such kind of future.
Unless you're a subsistence peasant, which 99.9% of rural and semi-rural (suruban) people aren't, you're going to have the same exact problems from a lack of all those things.
