There are a lot of people who understand what code does in isolation but struggle to understand the complexity of what happens when you build up layers of abstr

There are a lot of people who understand what code does in isolation but struggle to understand the complexity of what happens when you build up layers of abstraction. Knowing what flex does is one thing, but know how the cascade works or what specificity rules are is another level. Technical visual tools help. Its worth noting that the same is true for plenty of coders too. There's a good reason why people say things like recursion and pointers are hard.