In the previous chapter, we discussed the actors model and a framework that you can use to program with actors. However, the actor model is a paradigm just like functional programming. In principle, if you know the actors model from one language, you can use it in another language even if it doesn't have a framework that supports the actor model. This is because an actor model is an approach to reasoning about parallel computations, not some language-specific set of tools.
This state of things, just like functional programming, has its own benefits and drawbacks. The benefit is that you are not language-dependent if you depend on concepts. Once you know a concept, you can come to any programming language at all, and be capable of using them. However, the learning curve is steep. Precisely because it is all about paradigm and approach, it...