Dayo, a physicist, sat next to her boyfriend, Jared.


    "Are you ready?" she asked him.


    He nodded.


    "Are you ready?" she asked him


    Stolen story; please report.


    He nodded.


    "What just happened?"


    "You experienced Déjà vu, right?"


    "Yes. A time warp?"


    "That was my first theory ..."


    "All right, Dayo, tell me, what causes it?"


    She held up a device.


    "What''s it do?" He raised an eyebrow.


    "I don''t have enough power, so it only briefly allows us to swap with our doubles from a parallel world. They''re asynchronous, so Déjà vu."


    "Dayo, are you saying others are swapping ..."


    She smiled and nodded.