The woman could have spent $6 instead, (price of a movie ticket back in the 80's,) to hear Yoda say, "Hard to see. . . The future is always in motion."
OR she could have watched a decade plus of Star Trek and learned the past, present and future are happening all at once, and at the same time.And what she does in the present will affect/change the outcome of her future - which reinforces what Yoda said.
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Or she could have watched Lost.