Thanks, Eric. Good clarification. Two responses. First, are such big projects really a good way to meet user needs? Second: when you dig a trench with a backhoe, your trench is not forever dependent on the maker of the backhoe. With frameworks, as opposed to libraries, your own code is no longer your own. And then, say, when Angular updates in ways that are breaking (like they did from 2 to 3) it is really hard to fix. I think I would always prefer to build my own code base in a way that is well encapsulated based on a library of functions.