 Suppose that Suzy is born at time t0 and dies 90 years later, at time t90. At time t40, the forty-year-old Suzy steps into a time machine and disappears, reappearing (with her time machine) out of thin air many years earlier. Suzy then enters the nursery in the house where she was raised and, at t1, sees a one-year-old baby, whom she knows to be herself. (The character Suzy originates in Vihvelin 1996.)