What returns them to the norm? Why do domesticated animals like dogs and cats not return to their wild norm as strays? Without either a plausible mechanism or an observation of it occurring, why would we accept such a hypothesis?
i've given my opinion on this.
i believe transposons are responsible for the variations we see within a species.
this type of mutation is neither fixed, gradual, adaptive, or accumulating it's just a variation of the germline.
We should discuss what is meant by the geologically sudden appearance of a group. These are appearances over the course of 100,000 years or so. This would be consistent with periods of strong selection followed by periods of stability after the species had evolutionarily settled into their niche. Take wolves for example. 50,000 years ago we had just a few types of wolves, all of whom looked very wolf like. Then, humans domesticated a group of them and began applying a selection pressure to them. Within a few tens of thousands of years, we ended up going from wolves to poodles and great danes.
the explanations do nothing to fill these gaps.
the very fact that PE was accepted is proof that these gaps are not a result of "missing fossils"
also, the molecular clock hypothesis (which has a lot of support) negates "fast evolution", nor is there a workable theory for it.
But how do we know it's gradual over those periods of intense selection? Well, ongoing domestications so us that they are at least smooth over the course of 60 years (Russian Domestic Red Fox).
because of the work of kimura and jukes.
for example:
The concept of natural selection as the foundation of evolutionary change has been largely superseded, mostly through the work of Motoo Kimura, Tomoko Ohta, and others, who have shown both theoretically and empirically that natural selection has little or no effect on the vast majority of the genomes of most living organisms.
. . .
Kimura, Ohta, Jukes, and Crow dropped a monkey wrench into the "engine" at the heart of the modern synthesis — natural selection — and then Gould and Lewontin finished the job with their famous paper on “the spandrels of San Marco and the Panglossian paradigm”. The rise of evo-devo over the past two decades has laid the groundwork for a completely new and empirically testable theory of macroevolution, a theory that is currently facilitating exponential progress in our understanding of how major evolutionary transitions happen. And iconoclasts like Lynn Margulis, Eva Jablonka, Marian Lamb, Mary Jane West-Eberhard, and David Sloan Wilson are rapidly overturning our understanding of how evolutionary change happens at all levels, and how it is inherited.
evolutionlist.blogspot.com/2009/11/modern-synthesis-is-dead-long-live.html
and interestingly enough, margulis is refered to as a iconoclast in the above article, not a rebel.
this is one of the points i would like to stress.
when she first proposed her hypothesis (that went against dogma) her character was attacked, calling her a renegade and a rebel.
this sort of thing happens far too often.
it isn't hard to see that there have been a number of scientists that have had their characters damaged beyond repair.
I would disagree, quantum physics may not be intuitive, but it's highly logical.
it is?
how logical is it to be awarded a nobel prize for proving the elctron to be a particle, then some years later another scientist wins a nobel prize for proving it to be a wave?
how much logic does it take to state "the events of today can affect the past"?
You said HGT was responsible for macroevolution. I was pointing out that currently, all macroevolutionary changes I know of in animals show no sign of HGT proximate to the speciation event.
HGT is the only reasonable explanation.
the genetic molecular clock hypothesis discounts a fast/ slow type of evolution.
Not "progress" but adaptation to the current environment. Change the environment, and you change the local optimum and natural selection brings it to the new "center".
except for the fact you are talking about an epigenetic change, acquired characteristics, lamarkism in a different costume.
Can genes not reach fixation over the course of 100,000 years?
genes to not "gradually" become fixed in an organism.
it's all or nothing.
Even a minor benefit in a large population will hit fixation in a few hundred to a few thousand generations.
not according to the nearly neutral theory.
Other people aren't here. I'm asking how you, the person I'm talking to, are using the terms. Terms appearing in scientific literature are usually either defined or used in very standard ways. I'm asking you to do the same.
why are you expecting things from me that you aren't willing to do yourself?
all that you have done in this post is state the standing dogma of evolution.
as a matter of fact, that is what almost everyone has done here, they steadfastly refuse to see that many important assumptions of the modern synthesis has been abandoned.