[valand]

Even this is an over simplification of inversion of control.

Dependency injection is one form, but even a library that exposes parameters is also a form of inversion of control.

The degree of control is what varies, whether it is a mere flag (boolean), a variant directive (complex struct), a turing complete construct (pointer of instantiated function) or anything in between.

What I am saying is that this concept has been reduced as it is popularized and it isn't doing justice to the original powerful concept.