Okay, I'm sure everyone's seen (and loved) "That's So Raven". When I was a high-schooler, Iris asked that by knowing the prophecies, people ensured their fate. She wondered if the same thing would have happened even if Oedipus and Jocasta didn't know their fates. In "That's So Raven", Raven would spend the episode trying to avoid a terrible premonition, but her actions to avoid the future was what caused the future. The fatalism of the show however is very inconsistent. Raven sometimes does change the future. This reminds me of the show I'm watching now called "Continuum". Unlike Oedipus and "That's So Raven", the future is not determined by visions and prophecies but by time travelers. The protagonist is sent back in time with no way to get home. Some of the events she remembered in the future (that she tried to change for the better) such as a terrorist attack, were caused by the terrorist group that came back with her. That indicated that it was their fate to be in that time. This fatalism again is inconsistent. The protagonist uses her knowledge of the future to stop a serial killer before he could finish killing 38 people. Now the protagonist has changed the future.