People talk all the time about what their characters do. I say that my barbarian stabbed the orc in the face. Since neither my barbarian or the orc in question exist, it is technically incorrect to state that. I should really say that I declared an attack action for barbarian targeting the orc (no called shots in D&D, so no face-specific stab) and rolled a high enough number to exceed the orc's AC reducing the orc's hit points.
I see no difference between that and talking about thinking of what is happening in the fictional world as determining causality and chain of events. It will never be perfect, it's just a GM's best attempt to think about logical consequences of ongoing events in the world and whether or not they are impacted by the influence of the characters. But that's quite a mouthful so instead it's "causal impacts".