The Sun is Also a Star Chapter 31: Multiverses: A Quantum History Summary

How It All Goes Down

  • One solution to the grandfather paradox is the idea that, with every decision, the universe splits into multiverses where you make a different decision. 
  • For instance, there's a universe where Natasha's dad doesn't ruin her life, a universe where she's able to fix it, and a universe where she isn't. She doesn't know which of those universes she's currently in.