@Leadfoot,
Quote: But as Darwin himself pointed out, if changes are anything but gradual, the theory falls into question. The theory has been modified quite a bit since his day in order to make it fit. That is how we get to today's 'Punctuated Equilibrium' version of Darwin's Theory. You know, it's gradual except when it's not.
punctuated Equilibrium has always been evolutions "loss leader". Creationists have twisted the concept and actually posted the incorrect conclusion that , from the papaers THEYVE reviewed, PE leads onlyto extinction.
Theyve gotten it half right. Evolution is primarily long term adaptation to changing environments. If the environment changes quicklyenough that the heterozygocity within the species will adapt via evolution it dos so, often so that fossils are not seen from any intermediates. Thus the fossil record appears to be "Missing" intermediates. Thats really not what happens. Since the envionment changes rather quickly we dont see preserved intermeidates as much as we would xpect but they are there , often in some small layer that hasnt yet been studied.
Eldredge and Gould's own study fossil assemblage were within sediment layers , where they coined "PE" . These layers are composed of Devonian brachiopods (Spiriferids). The evolution of mucro spirifers re seen to have occurred so quickly s to not leave any intermediates. "This is not saltation they said" , but it sorta was. later it turned out that a grad student from SUNY found an intermediate fossil of the very group that Elredge and Gould posed as the poster fossil of their "theory". While PE explains a few unique fosil assmblages, the explnation MUST consider the speed at which the change occurs, So its just fast enough so that the inherent genetic variability can get "Selected for" in the nw environment.
NOW, where it gets unfair is that many of the Amateur fossil hunters do is believe the papers of guys like Dr Fazala Rana who has done as good a job as he could trying to misrepresent what tech papers say. Hes a practitioner of "quote mining" and conclusion miscasting.
You can look him up and then post some of his stuff and I can easily show you where his stuff gos off the rails.
YES, sadly, hes a "captive" Fella at the Discovery Institute. Why? because those guys get paid decent salaries to back up ID by any mean they can.However Fuz is a devout full frontal Creationist BUT, they also hope that most of their readers dont have the skills in the fields he posts , so readers will believe him without question and th DI still maintains plausibl denialbility. Im fairly sure that He is the one who coined the phrase that you used above'
" Evolution is based upon gradualism , except when its not"
Evolution is most often a product of the changing environment. The genetic variability that best fits a fast developed environment becomes the basis of "PE", and the environment merely "selected out those that didnt fit the occasion"