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Author Topic:   Nothing in biology makes sense except in the light of evolution.
CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 931 of 1311 (815401)
07-19-2017 11:13 PM
Reply to: Message 918 by JonF
07-19-2017 9:33 AM


Re: seven "assumptions"
JonF writes:
[Kerkut] lists seven "assumptions", the first two of which are not premises of the ToE and the rest of which are conclusions from masses of evidence.
quote:
(1) The first assumption is that non-living things gave rise to living material, i.e. spontaneous generation occurred.
(2) The second assumption is that spontaneous generation occurred only once.
Something of relevance to this came up in Topic: Can the creationist model explain the data? Message 66
Both University of Michigan and University of Berkley list Abiogenesis and Universal Common Ancestry as foundational assumptions of the Theory of Evolution.
While Kerkut says "spontaneous generation occurred only once" others such as Dobzhansky say that "It is also possible that there were several, or even many, origins of life; if so, the progeny of only one of them has survived and inherited the earth" Both result in Universal Common Ancestry.
So as far as I can see Kerkut's assumptions are bog standard evolutionist beliefs.
Edited by CRR, : Forum reference updated

This message is a reply to:
 Message 918 by JonF, posted 07-19-2017 9:33 AM JonF has replied

Replies to this message:
 Message 948 by JonF, posted 07-20-2017 7:52 AM CRR has replied
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CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 949 of 1311 (815428)
07-20-2017 7:55 AM
Reply to: Message 948 by JonF
07-20-2017 7:52 AM


Re: seven "assumptions"
Follow the links.

This message is a reply to:
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Replies to this message:
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CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 958 of 1311 (815519)
07-20-2017 8:47 PM
Reply to: Message 954 by JonF
07-20-2017 10:21 AM


Re: seven "assumptions"
So at Message 918 you said
JonF writes:
[Kerkut] lists seven "assumptions", the first two of which are not premises of the ToE and the rest of which are conclusions from masses of evidence.
quote:
(1) The first assumption is that non-living things gave rise to living material, i.e. spontaneous generation occurred.
(2) The second assumption is that spontaneous generation occurred only once.
My reply at Message 931 addressed ONLY (1) and (2) which you said were not premises of the ToE
Assumption (1) is ABIOGENESIS and assumption (2) results in UNIVERSAL COMMON ANCESTRY.
From University of Michigan we get;
"Darwin’s theory of evolution entails the following fundamental ideas.
All organisms share common ancestors with other organisms. Over time, populations may divide into different species, which share a common ancestral population. Far enough back in time, any pair of organisms shares a common ancestor."
UNIVERSAL COMMON ANCESTRY
Following the link on that page to lecture on speciation we find
"Life has evolved from non-life, and complex organisms from simpler forms."
ABIOGENESIS
From Berkley we get;
Universal Common Ancestry, Through the process of descent with modification, the common ancestor of life on Earth gave rise to the fantastic diversity that we see documented in the fossil record and around us today. Evolution means that we're all distant cousins: humans and oak trees, hummingbirds and whales.
Abiogenesis, they include as an event in Important events in the history of life, Unicellular life evolves. So according to Berkley and Michigan all life evolved from a common microbial ancestor that arose naturally from non-living matter.
From Dobzhansky
"They suggest that life arose from inanimate matter only once and that all organisms, no matter how diverse in other respects, conserve the basic features of the primordial life. (It is also possible that there were several, or even many, origins of life; if so, the progeny of only one of them has survived and inherited the earth.) "
ABIOGENESIS and UNIVERSAL COMMON ANCESTRY
From Jerry Coyne in Why Evolution is True, 2009
"Life on earth evolved gradually beginning with one primitive speciesperhaps a self-replicating moleculethat lived more than 3.5 billion years ago; it then branched out over time, throwing off many new and diverse species; and the mechanism for most (but not all) of evolutionary change is natural selection." [Jerry Coyne, 2009]
ABIOGENESIS (perhaps a self replicating molecule) and UNIVERSAL COMMON ANCESTRY
This is what Universities teach. This is what evolutionists Kerkut, Dobzhansky, and Coyne say. The precise wording changes with the different sources but the intent is clear.
So these are indeed assumptions of the ToE and as far as I can see Kerkut's assumptions are bog standard evolutionist beliefs.

This message is a reply to:
 Message 954 by JonF, posted 07-20-2017 10:21 AM JonF has replied

Replies to this message:
 Message 962 by New Cat's Eye, posted 07-21-2017 12:29 AM CRR has replied
 Message 973 by JonF, posted 07-21-2017 8:57 AM CRR has replied
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CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 965 of 1311 (815529)
07-21-2017 1:26 AM
Reply to: Message 962 by New Cat's Eye
07-21-2017 12:29 AM


Re: seven "assumptions"
That possibility is covered in the quote from Dobzhansky.

This message is a reply to:
 Message 962 by New Cat's Eye, posted 07-21-2017 12:29 AM New Cat's Eye has replied

Replies to this message:
 Message 977 by New Cat's Eye, posted 07-21-2017 9:37 AM CRR has replied

  
CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


(1)
Message 968 of 1311 (815534)
07-21-2017 4:15 AM
Reply to: Message 967 by Minnemooseus
07-21-2017 2:36 AM


Re: Let's call this the Genesis 2:7 message
Dead matter can't produce life.
Humans can't produce life from dead matter.
God can produce life from dead matter.

This message is a reply to:
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Replies to this message:
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CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 998 of 1311 (815632)
07-21-2017 11:19 PM
Reply to: Message 973 by JonF
07-21-2017 8:57 AM


Re: seven "assumptions"
OK I can live with that criticism. So we can say then that the theory of evolution entails abiogenesis and universal common ancestry; and I can leave it to you as to whether these are necessary or inevitable parts or consequences.

This message is a reply to:
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CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 999 of 1311 (815634)
07-21-2017 11:25 PM
Reply to: Message 977 by New Cat's Eye
07-21-2017 9:37 AM


Re: seven "assumptions"
New Cats Eye writes:
Don't cop out. Show me the quote.
OK, here it is;
"They suggest that life arose from inanimate matter only once and that all organisms, no matter how diverse in other respects, conserve the basic features of the primordial life. (It is also possible that there were several, or even many, origins of life; if so, the progeny of only one of them has survived and inherited the earth.) "
Nothing in Biology Makes Sense except in the Light of Evolution, Theodosius Dobzhansky
exactly as quoted in Message 958

This message is a reply to:
 Message 977 by New Cat's Eye, posted 07-21-2017 9:37 AM New Cat's Eye has replied

Replies to this message:
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CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 1003 of 1311 (815673)
07-22-2017 10:25 PM
Reply to: Message 981 by Taq
07-21-2017 10:52 AM


Re: Let's call this the Genesis 2:7 message
Taq writes:
A deity creating life from dirt is the very definition of superstition.
But if you say it happened without any intelligent input that's science.

This message is a reply to:
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CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 1004 of 1311 (815677)
07-23-2017 1:51 AM
Reply to: Message 993 by Dredge
07-21-2017 10:34 PM


Common Ancestry; assumption or conclusion?
For Charles Darwin it appears that common ancestry was the assumption for which natural selection provided an explanation.
Erasmus Darwin’s view of evolution comes rather close to his more famous grandson’s. In his 1794 book Zoonomia, Erasmus Darwin appears to suggest it’s possible that all warm-blooded animals have a common origin.*
In Charles Darwin’s time, some British scientists, including Robert Edmond Grant and Charles Lyell, while rejecting Lamarckism, began to believe all lifeforms had the capacity to transform into other species. They noted that the geologic record appeared to show a progression of lifeforms. Robert Edmond Grant — who had taught Darwin at the University of Edinburgh — even proposed a common origin for plants and animals, as Darwin’s grandfather had. However, neither Grant nor Lyell could propose a coherent mechanism for the transformation of species.*
In 1835 Edward Blyth clearly described how breeders use artificial selection to produce domestic animals to meet specific requirements. He also described how in nature animals appear with slight variations. He identified that the process we now call natural selection would operate on the variations. However, he didn’t notice that this could lead to the formation of new species. In fact, he believed the opposite was true.*
By 1839 Charles Darwin had begun to formulate his theory of evolution by natural selection inspired by existing ideas of common ancestry from Lyell and Grant, with the ideas of scarcity from Malthus and natural selection from Blythe.*
In 1844 of a book entitled Vestiges of the Natural History of Creation suggested the solar system had formed naturally from a nebula and that life had been spontaneously generated on the earth. The lowly forms of life had then evolved into higher forms, including man.*
On July 1, 1858, a joint paper was read to the Linnean Society. The authors were Charles Darwin and Alfred Russel Wallace. The paper told the world of their theory which came to be known as evolution by natural selection.*
The following year, Darwin released his historic book On The Origin of Species with large amounts of evidence supporting the new theory.*
While the book presents the evidence for natural selection first leading up to common ancestry it is likely the ideas came to Darwin in the opposite order; common ancestry first, then selection as the mechanism. E.g. see Elliot Sober, Did Darwin write the Origin backwards? Just a moment...
* Just a moment...
Today the idea of common ancestry is widespread and most children know it at least in some form before they go to school, so it is for them a prior assumption even if they are taught natural selection first.
However as Dredge says it probably makes little difference since both ideas are integral to the modern version of Darwin's theory.
Edited by CRR, : No reason given.

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CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 1026 of 1311 (815735)
07-23-2017 7:13 PM
Reply to: Message 1010 by RAZD
07-23-2017 7:14 AM


Re: Let's call this the Genesis 2:7 message
It's an hypothesis, ...
No, it's A hypothesis. It would only be "an" if the "h" is silent, as in "an 'ypothesis".
We also know that there are many self-replicating molecules
Self-Replicating Molecules - Life's Building Blocks (Part II)
A link to a whole thread is not very specific. Specifically, which do you think is the best example of a self replicating molecule?

This message is a reply to:
 Message 1010 by RAZD, posted 07-23-2017 7:14 AM RAZD has replied

Replies to this message:
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CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 1027 of 1311 (815736)
07-23-2017 7:20 PM
Reply to: Message 1013 by Phat
07-23-2017 8:13 AM


Re: Let's call this the Genesis 2:7 message
Phat writes:
Science, done properly, is never wrong as far as we can tell. You mention "other" interpretations and I personally don't know enough to even hold court in these topics, but I am learning one thing from my own field of research on diet, ...
Well when I look back over the contradictory advice on diet over the years I would conclude that science is often wrong. Even when wrong there has usually been a consensus. "Eggs are bad for you, don't eat more than 2 a week". "No, eggs are good for you, eat often".

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CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 1037 of 1311 (815747)
07-24-2017 3:49 AM
Reply to: Message 1023 by Rrhain
07-23-2017 3:51 PM


Rrhain writes:
Now, right here and now we can create self-replicating, auto-catalysing, homochiral molecules that evolve.
I'd like a reference for that please.
After all, that's how life happens in the first place: It takes dead material and turns it into life. The food you eat isn't alive. It's not like you go out and hunt animals to consume their still-beating hearts. The vegetation you eat dies when you cultivate it. About the only thing that's still alive when you eat it are the bacteria and fungi that are on the food you eat, but it isn't like you get your sustenance from them.
For crying out loud, salt is a rock and yet you continue to incorporate it into your cells in order to keep you alive.
So we can clearly see through simple observation that life is continually created from non-life.
Not quite. In your example something that IS alive is consuming non living matter and incorporating it into its body. At best life is creating life. This is entirely different to abiogenesis; dead matter creating life from dead matter.
Edited by CRR, : expanded

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 Message 1023 by Rrhain, posted 07-23-2017 3:51 PM Rrhain has replied

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CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 1038 of 1311 (815748)
07-24-2017 4:17 AM
Reply to: Message 1022 by caffeine
07-23-2017 3:42 PM


Re: Historical Science
caffeine writes:
You see evidence A, and you speculate B; because B would leave A behind, wouldn't it?
You can't test this by going back in time, but you can test it by asking what else B would leave behind. Assume B, predict the expected consequences (other than A, which you already know), and then check if they're there as well. If they are, your confidence in B is strengthened.
B results in A; We see A so B could be a cause. However C and D could also be causes. You need to use inference to the best explanation. Part of that is asking how other evidence is best explained.
How about an example? We see fossils in the rocks (A).
Evolution over millions of years (B) could result in fossils. A catastrophic worldwide flood (C) could result in fossils.
What else B would leave behind? If evolution takes place by innumerable small steps then despite its extreme imperfection we should see some clear cases of slow transition from one form to another. However if C is true we would expect the fossil record to show distinct gaps between forms as a general rule.
The fossil record shows only a few questionable transitions. The fossil record generally shows distinct gaps between forms.
Therefore C is a better explanation than B. The best explanation is that the fossils were left by a catastrophic worldwide flood.

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CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 1054 of 1311 (815824)
07-24-2017 8:09 PM
Reply to: Message 1045 by RAZD
07-24-2017 11:12 AM


Re: Let's call this the Genesis 2:7 message
Curiously I think they are all equally good examples
Good, then you'll have no trouble picking one.
Please give an example that is not behind a paywall.

This message is a reply to:
 Message 1045 by RAZD, posted 07-24-2017 11:12 AM RAZD has replied

Replies to this message:
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CRR
Member (Idle past 2271 days)
Posts: 579
From: Australia
Joined: 10-19-2016


Message 1055 of 1311 (815825)
07-24-2017 8:24 PM
Reply to: Message 1043 by New Cat's Eye
07-24-2017 9:47 AM


Re: seven "assumptions"
The Cambrian Explosion is a single occurrence that took millions of years. (Speaking in terms of an old Earth view) Similarly the occurrence of life could have taken millions of years with only one winner, as Dobzhansky says. The consequence is that all living things today have come from a last universal common ancestor. That at least is the consensus opinion of evolutionists today.
What if we do find a life form that could not have arisen from that ancestor? Not much really. Evolutionists would just say that there were at least two survivors from that initial origin of life. Creationists already believe in separate creation of different kinds.

This message is a reply to:
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