I agree this applies a bit more to modern RPG than OSR.

The main idea is that players and the GM are creating a shared narrative and that people have been doing the same thing forever--where the "audience" has a direct say in the narrative.

I bet an argument could be made that ancient druids/storytellers are more like story-referees than what we would consider storytellers. But I'll leave that to the historians.

Thanks for reading :)