What tells you there won't be a patent tomorrow? Nothing. But that applies regardless of whether I use React, or I use any other piece of software that Faceboo

What tells you there won't be a patent tomorrow? Nothing. But that applies regardless of whether I use React, or I use any other piece of software that Facebook may or may not take a patent out on in the future. Except, in the former case, I at least had a license to begin with. This is absolutely incorrect. It depends on the content of the patent. For example, if FB filed a patent for React Mobile, it would not affect Preact and Inferno, as these frameworks do not deal with mobile rendering. There is a small outside chance that Facebook might patent a particular thing that React does that no other view framework does. It's unlikely to be the case, since most frameworks accomplish the same things in the same way.