Professor Jared Sabot spoke with his friend Professor Samantha Jenkins.

“Did you succeed, Sam?”

“At what?”

“To go backward in time.”

“Oh, that experiment’s irrelevant now.”

“Irrelevant? Samantha, you’ve invested years of your life to see if it’s possible.”

“Yes, Jared, I know, but I’ve discovered a greater ability. I can reverse or halt my aging by rewinding myself.”

“Immortality, Sam?”

“Indeed, and that, my friend, makes time travel irrelevant. Everything will aimlessly move around from my point of view—neither backward nor forward. They just are …”

“And when the universe ends?”

“None of this will matter anyways.”