The Different Forms of Polymorphism

There's a template method template method. That's what it is. Instead of inheriting and overriding that method, you simply stick a type class in there. You simply do this kind of compile time composition. Could that be the way you think of it? Yeah. It's just a different form of polymorphism. I'm still kind of redoing my definition of what polymorphism is. But it's interesting to go through all these design patterns and see which ones are no longer needed because of Java or Kotlin language features.