I just happened to enter this Timestream 43 years ago. It wasn't
  my choice. I didn't ask to be here. I almost died three times
  but fought to live. Premature. Cerebral Palsy. 1/2 blind and 1/2
  deaf. Physical Therapy. By 5 years old? All appearance of
  normality and except for glasses, and teachers saying, "HE BEATS
  TO A DIFFERENT DRUMMER", more or less indistinguishable I became
  the fastest runner, muscular and outside of being unable to
  figure out my right and left sometimes, I'm fine

  Still, I _could_ have been born 8 years ago.

  Or 120 years from now.

  Or 1000 years ago. It's not crazy. It's just happenstance that
  I've been here 43 years so far.