Some Things Never Change

Jessica makes an important discovery that leads her to make a decision that could drastically change things, perhaps for the better?
Setting: Somewhere in 2x10 'AKA Pork chop', but knowing 2x11 'AKA Three lives and counting' is enough to understand what's going on.
From chapter I:

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"Albert, but ... what happens?" Louise cackled, frightened, clutching her husband by the arm.
"I ... I don't know ..." the man muttered, standing in front of her, with a protective attitude, before turning to that intruder.
"Who are you? How did you get in here? Go away, now! " he hissed, his tone cold.
"Oh come on, you all saw how I got in here and it surely wasn't using the door!" Jessica shrugged. "I come from the future and you must believe me, because it is as true as I can do this!"
And as she said it, she grabbed a steel stool that was nearby, squeezing it in her hands as if it was a ball of paper.
"Albert! I'm afraid!" moaned the woman of science.
"I'm not." said the kid, who rarely spoke during the experiments.
"Good, Kevin, you don't have to be afraid of me. I'm here to save you. " Jessica smiled at him, [...].
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