ELI5 anyone? My basic understanding is if you use React and decide to sue FB for patent infringement down the line, FB can countersue(?) bc they revoke your grant to use the patent upon you suing them. But what _exactly_ constitutes using React? Of course using the library is one thing, but what about using some other library that installs React as some dependency? Does using JSX also count as using "React"? I just feel that what exactly constitutes using React is very vague esp considering there are many non-FB tools that use "React" (and associated technologies, eg the idea of Virtual DOM) in some form or another.