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  Topic: A Separate Thread for Gary Gaulin, As big as the poop that does not look< Next Oldest | Next Newest >  
Henry J



Posts: 4756
Joined: Mar. 2005

(Permalink) Posted: Nov. 26 2012,23:01   

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It's the same way your brain learns, unless of course you believe that all of your abilities were deliberately put there by an intelligence of some sort (whether internal or external).

No. Changes to the gene pool are a result of things like various types of mutations, recombination, and a few rarer mechanisms.

In a neural network, the basic component is changes to the connections between neurons (nodes in the network). Both are random, but the similarity ends there.

Note that random does not mean that all possible results have the same probability. In the case of mutations, the relative probabilities are caused by the chemical properties of the DNA and the other molecules with which it reacts.

If mutations weren't random with respect to reproductive success a significant proportion of the time, that would produce a detectable pattern, i.e., a larger fraction of useful mutations and a smaller fraction of detrimental ones.

Henry

  
  18137 replies since Oct. 31 2012,02:32 < Next Oldest | Next Newest >  

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