Strange attractors

• Limit set as t ? ?

• Set of measure zero

• Basin of attraction

• Fractal structure

  • non-integer dimension
  • self-similarity
  • infinite detail

• Chaotic dynamics

  • sensitivity to initial conditions
  • topological transitivity
  • dense periodic orbits

• Aesthetic appeal

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Occur in infinite variety (like snowflakes)

Produced many millions, looked at over 100,000

Like pornography, know it when you see it

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