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Debate:Is the theory of macroevolution true? (view source)
Revision as of 19:40, February 13, 2007
, 19:40, February 13, 2007→Yes: reply
Which part is unclear? The statements concerning the fossil record and crossbreeding within a species are simple, factual observations. If the argument concernig rate of change in units of Darwins is not based on a linear function, what is it based on? And to clarify- by saying that Change approaches a horizontal assymptote, I mean that change continues over time, but becomes infinitely small and and never exceeds a fixed point. The dog may, through natural reproduction, become another kind of dog. But observation tells us that it will never sprout wings and become a bird.
Which part is unclear? The statements concerning the fossil record and crossbreeding within a species are simple, factual observations. If the argument concernig rate of change in units of Darwins is not based on a linear function, what is it based on? And to clarify- by saying that Change approaches a horizontal assymptote, I mean that change continues over time, but becomes infinitely small and and never exceeds a fixed point. The dog may, through natural reproduction, become another kind of dog. But observation tells us that it will never sprout wings and become a bird.
-Chris J
-Chris J
:::: Ok, for starters, you refer "observation and Mendellian genetics theory suggest that evolutionary change is better described by a rational function bounded by an assymptote" - it isn't clear what your relevant vairable is that is being bounded. Continuing, your next sentence claims that "it is relatively easy to crossbreed a pure bred dog so that you obtain a mutt or a nearly pure bred dog of another species." I'm not even sure what to make of this sentence since dog breeds aren't separate species. You furthermore assert that "it will take an infinite amount of time to entirely replace the traits of the original breed with those of the new breed" if anything this is what one might have thought before Mendel. Since alleles come in discrete entities and one does not have genetic continua, this is false. Not only is it false, it is irrelevant, since whether we are able to breed something to be identical to some pre-existing similar organism is irrelevant. Your summary remarks that "The dog remains a dog" and your rephrase that "observation tells us that it will never sprout wings and become a bird" are simply assertions and not very relevant ones anyways(evolution wouldn't expect a dog to "sprout wings" although there are excellent examples of transitionals between true flyers and others). The terminology is so vague as to make it unclear exactly you mean that a dog will always remain a dog. Do you mean there will be never be a reproductive barrier? Do you mean that it will fit what your intuitive notion of what a dog looks like?. (Also, while we are on the topic of defintions, you use both "species" in a non-standard way, and use "kind" in a way that isn't even standard for creationists. If you are going to use terms in a non-standard fashion, defining them would be good). [[User:JoshuaZ|JoshuaZ]] 14:40, 13 February 2007 (EST)
#*'''Counter:''' Despite a century of teaching evolution in American schools, the majority of Americans still reject it. The burden of proof is on the evolutionists, and the proof just isn't there. Darwinists would be better off looking for another theory to try to replace Christianity.--[[User:Aschlafly|Aschlafly]] 23:54, 21 December 2006 (EST)
#*'''Counter:''' Despite a century of teaching evolution in American schools, the majority of Americans still reject it. The burden of proof is on the evolutionists, and the proof just isn't there. Darwinists would be better off looking for another theory to try to replace Christianity.--[[User:Aschlafly|Aschlafly]] 23:54, 21 December 2006 (EST)