Broken?
A rubble wall is filled with cracks, holes, and irregularities. This is part of its nature. Part of its charm, too.
Just one of those voids, however — on a concrete foundation — could be cause for great concern.
What we expect of a thing, and what’s within the scope of acceptability, can vary widely.
A flaw in one context may be a feature in another. To understand the difference, we first have to know what we’re looking at.