"In some subsequent episodes, certain individuals have certain knowledge of certain events that they wouldn't have, if they didn't have access to the future."

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In real science a hypothesis can never be proved true...A science which confines itself to correlating phenomena can never learn anything about the reality underlying the phenomena, while a science which goes further than this and introduces hypotheses about reality, can never acquire certain knowledge of a positive kind about reality; in whatever way we proceed, this is forever denied us.

— James Jeans