There is less difficulty—indeed, no logical difficulty at all—in
imagining two portions of the universe, say two galaxies, in which
 time goes one way in one galaxy and the opposite way in the
other. . . . Intelligent beings in each galaxy would regard their own
time as “forward” and time in the other galaxy as “backward.”   
                  —Martin Gardner, in Scientific American
Somewhere now she takes off the dress I am
 
 putting on. It is evening in the antiworld
 
 where she lives. She is forty-five years away
 
 from her death, the hole which spit her out
 
 into pain, impossible at first, later easing,
 
 going, gone. She has unlearned much by now.
 
 Her skin is firming, her memory sharpens,
 
 her hair has grown glossy. She sees without glasses,
 
 but their ardor increases. Soon her second child
 
 will be young enough to fight its way into her
 
 tadpole to cluster of cells to tiny island to
 
 nothing. She is making a list:
 
  Things I will need in the past
 
   lipstick
 
   shampoo
 
   transistor radio
 
   Sergeant Pepper
 
   acne cream
 
   five-year diary with a lock
 
 She is eager, having heard about adolescent love
 
 Crime and Punishment and ride on a roller coaster
 
 without getting sick. I think of her as she will
 
 be at fifteen, awkward, too serious. In the
 
 mirror I see she uses her left hand to write,
 
 her other to open a jar. By now our lives should
 
 have crossed. Somewhere sometime we must have
 
 passed one another like going and coming trains,
 
 with both of us looking the other way.

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