challenge

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Across
  1. 5. North African expanse where dunes outvote cities
  2. 8. Truce at the eleventh hour of the eleventh month
  3. 10. Norse doomsday when gods meet their fate
  4. 12. Subjective awareness of experience, the lights on inside
  5. 13. Prison whose fall lit the fuse of the French Revolution
  6. 16. Bubble bath meets boundary setting, in a hashtag
  7. 19. Backbone of western South America
  8. 21. Epic bard credited with Iliad and Odyssey
  9. 22. Opaque logic deciding what surfaces in your feed
  10. 23. Fact of being, philosophically
  11. 24. Design principle mirrored on both sides
Down
  1. 1. Crisp maker that keeps oil to a whisper
  2. 2. Number sign turned topic tag across platforms
  3. 3. Caterpillar to butterfly level change
  4. 4. Athenian gadfly who never wrote a word down
  5. 6. Bounce-back factor after setbacks
  6. 7. Gut health helpers found in yogurt and kimchi
  7. 9. Selfhood, or sameness over time in metaphysics
  8. 11. 1215 charter that hemmed in King John
  9. 14. Active support from those not in the group
  10. 15. Portmanteau for Barbie and Oppenheimer same day craze
  11. 17. Customer service rep that never needs coffee
  12. 18. Statement that contradicts itself yet still rings true
  13. 20. Feeling with someone, not just for them