Logic and evolution (Introduction)

by David Turell @, Saturday, July 23, 2016, 15:11 (1154 days ago) @ dhw

DAVID: Not entirely. Since adaptation often is accompanied by loss of info, it is very possible some degree of innovation may result from loss of info.

dhw: Once again: “accompanied by” does not mean “caused by”. There is no evidence and no logical reason for the argument that INNOVATION can be CAUSED (as opposed to accompanied) by loss of information.

If adaptation is not a form of innovation, what is? Loss occurs with adaptations, a well-observed discovery. I agree that major new-species innovation should have new information as its cause, but some loss might still be occurring during the process of speciation as parts of a body plan are adapted and altered.

DAVID: With the evidence that adaptation can be due to loss of info, I cannot accept your dogmatic statement. I want to keep all possibilities: preplanning with some loss possible, and dabbling.

dhw: I am talking about “all the information being present at the beginning”, and loss of information being responsible for innovation (not for adaptation). .... So please say if you truly believe that the first cells contained all the information needed for every species that ever existed, and so each species had to lose the information required for every other species. Conversely, if information had to be added (God dabbling), then all the information cannot have been present at the beginning. That is not dogma, that is logic.

You are absolutely logical, which is why I continue with my dilemma. And one has to consider that new species might come from a rearrangement of existing information. so I can still consider that all the info is present in the beginning, some is lost and some is rearranged through dabbling.

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