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Natural Selection and CAs

Natural Selection and CAs. Bao-Hoi Nguyen CS240 Spring 2003. Overview. Introduction Wolfram vs. Darwin Optimal The Leopard has an Internal CA Evidence Against Natural Selection Conclusion. Introduction. Lots of complexity and diversity seen in nature. Need an explanation

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Natural Selection and CAs

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  1. Natural Selection and CAs Bao-Hoi Nguyen CS240 Spring 2003

  2. Overview • Introduction • Wolfram vs. Darwin • Optimal • The Leopard has an Internal CA • Evidence Against Natural Selection • Conclusion

  3. Introduction • Lots of complexity and diversity seen in nature. Need an explanation • Darwin: Origin of Species • Wolfram: CAs

  4. Wolfram vs. Darwin • To many parts • Interbreeding • Finches

  5. Optimal • Definition • Some animals have advantages • Wolfram’s explanation • Why only human?

  6. The Leopard has an Internal CA • Animal • SeaShells • Plant

  7. Animals • Pattern looks complex • Same patterns seen on all animals • 2D CAs easily reproduce

  8. Seashell • Patterns • Shapes • 1D CA

  9. Plants • Leaf and tree shapes • Fibonacci numbers • Golden angle

  10. Evidence Against Natural Selection • The neck of the giraffe • The first cell

  11. Conclusion • Natural selection is questionable • Wolfram’s theory is legitimate

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