Alternatively, it could look like a library. A framework has control of the application by default and gives control to your code at designated points, to perf

Alternatively, it could look like a library. A framework has control of the application by default and gives control to your code at designated points, to perform some computation and then return control to the framework. A library takes control of the application when/where your code calls it, performs some computation and then returns control to your code. A library is a way to reuse code; a framework is a way to reuse application structure/design and control flow. The pain points of frameworks are well known at this point, I guess the question is given a really good set of high-level libraries, could you be as productive as you are using a framework? Maybe not at first, because you have more design choices to make. But later, you have less of other people's design choices restricting you.