Perplexed comments on Could markets be called optimization proccesses?

Perplexed 10 Jan 2011 16:12 UTC
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Note that, conventionally, fitnesses can decline

Yes, I did notice that. That is why I wrote spelling out the assumptions:

R.A. Fisher proved that (under the admittedly unrealistic assumption of an unchanging environment) the average ‘fitness’ of the organisms in a population subject to natural selection can only increase, so long as the mutation rate is moderate.
- timtyler 10 Jan 2011 20:51 UTC
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  Note that, conventionally, fitnesses can decline
  
  Yes, I did notice that.
  
  Ah! Fisher’s fictional fitnesses! My bad; I missed that context—apologies.