The game's mechanics are designed to be experimental and unpredictable, to defy the logic of "What you see is what you get". Is the environment changing around you, or is it your imagination? Will jumping to your death kill you, or will it save you? Could the wrong answer actually turn out to be the right answer?
In Only If, you will fail a lot, you will die a lot, and you will undoubtedly be confused. Or will you?