O programa AVIDA falha na modelação exata da evolução darwiniana

In 2003, evolutionary biologist Richard Lenski, philosopher Robert Pennock and others co-published a Nature paper titled “The evolutionary origin of complex features” reporting results of a computer simulation of evolution dubbed “Avida.” Though publicly arguing that Avida refuted intelligent design by showing the evolution of irreducible complexity, their paper refused cite the work of Michael Behe or any other ID proponent. Now, Winston Ewert, William Dembski, and Robert Marks expose in a paper in Proceedings of the 2009 IEEE International Conference on Systems, Man, and Cybernetics why Lenski and Pennock’s “Avida” simulation fails to accurately model Darwinian evolution.

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Abstract

According to conservation of information theorems, performance of an arbitrarily chosen search, on average, does no better than blind search. Domain expertise and prior knowledge about search space structure or target location is therefore essential in crafting the search algorithm. The effectiveness of a given algorithm can be measured by the active information introduced to the search. We illustrate this by identifying sources of active information in Avida, a software program designed to search for logic functions using nand gates. Avida uses stair step active information by rewarding logic functions using a smaller number of nands to construct functions requiring more. Removing stair steps deteriorates Avida’s performance while removing deleterious instructions improves it. Some search algorithms use prior knowledge better than others. For the Avida digital organism, a simple evolutionary strategy generates the Avida target in far fewer instructions using only the prior knowledge available to Avida.

(Winston Ewert, William A. Dembski, and Robert J. Marks II, "Evolutionary Synthesis of Nand Logic: Dissecting a Digital Organism," Proceedings of the 2009 IEEE International Conference on Systems, Man, and Cybernetics San Antonio, TX, USA, 3047-3053 (October 2009).)

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NOTA IMPERTINENTE DESTE BLOGGER:

Eu queria ver a cara de quem usou o AVIDA como exemplo de falsificação da complexidade irredutível de sistemas bióticos de Michael Behe: quebrou a cara epistêmica no contexto de justificação teórica!!!

Fui, nem sei por que, pensando no Robert Pennock, um filósofo que está fazendo carreira acadêmica graças à teoria do Design Inteligente... Pennock é ingrato e nem reconhece isso publicamente!