Thursday, April 12, 2012

Artificial Neural Networks Demonstrate the Evolution of Human Intelligence

I know you made a joke, but this right here is why believing in intelligent design and evolution etc are not necessarily incompatible with each other.

No, it is not. They are incompatible.

Intelligent Design comes in two forms. The first is when we admit that it is just a euphemism for creationism. In this case, the theory of evolution (as well as most of the field of archaeology) clearly contradicts the story of Genesis, thus rendering the two incompatible.

The second is the form in which ID, in an attempt to distance itself from religion, rests upon the principle of irreducible complexity. The basic idea is that certain constructs represented in nature today (the human eye is an oft-used example) would have been useless in a less-complex or less specific form, and thus these traits would not have evolved (a half-formed eye is an evolutionary disadvantage, a being is better off not wasting the calories keeping that useless tissue alive). Since these traits could not develop through incremental changes, some traits must not evolve, but must have been put there by some intelligent agent.

This second form is not so much a scientific theory as it is a fundamental misunderstanding of stochastic processes and the field of mathematical optimization. This form of ID is basically the claim that evolutionary optimization can never escape local optima to discover global optima - something a competent applied mathematician knows to be false.

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