"Free will is just an illusion." She told him. "Our choices can modify individual events, but they will never change our destiny, which is inevitable and superior to our own understanding of existence. Prophecies serve to prepare us for what's to come. It's not expected that fate can be changed, and trying would only make it come true sooner. Scorpius always said he didn't want to make the same mistakes of the Dark Lord, but in the end, that's exactly what he did. Do you see how ironic that is?"