we've crafted this world of coordinated "expectations" everyone doing their little parts & expecting in return the ability to reach out & use any part of the system (given a cost or price usually, but not always) - the system is driven by expectations of return and investment - we all benefit and we all rely on this coherent network of product, production, maintenance and delivery, access is a given, quality is not - but it's built in, so it's predictable.
it's rather amazing to me, the whole thing.