Do you remember the good old days?
What is TypoScript? Various myths and speculations exist about that, well, programming language? No, it never was a programming language. Though it could be used to express logic. Is it a configuration language then? It's often used to configure settings, but the scope is certainly blurry.
The power of TypoScript - if used well - is the declarative approach of expressing the rendering and execution of various parts of the system. And a declaration in TypoScript is never final, but can be changed at a later time by another extension or template.