So if you are able to read and understand a single page of code, then you can almost definitely understand the overall design of a system and the flow of its op

So if you are able to read and understand a single page of code, then you can almost definitely understand the overall design of a system and the flow of its operations. But if you are tasked with analyzing a system of hundreds of pages of code, you are likely to struggle with some of the aspects of code, such as its semantics, its design and its behavior.