Time Travel

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Across
  1. 1. A timeserver.
  2. 4. Continuum theorem
  3. 8. English writer
  4. 9. hour
  5. 10. time
  6. 14. futurism
  7. 16. archaism
  8. 17. a network of alternate timelines that branch off from the DC Universe
  9. 18. time drive
  10. 19. ages and ages
Down
  1. 2. if an event exists that would cause a paradox or any "change" to the past whatsoever, then the probability of that event is zero
  2. 3. someday
  3. 5. Not of or pertaining to time
  4. 6. Time conceived of, or perceived as, possessing multiple dimensions
  5. 7. Room
  6. 11. lasting
  7. 12. an explanation of how speed affects mass, time and space
  8. 13. Concerning time
  9. 15. Future