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originally posted by: turbonium1
Proving Earth is flat, covered by a dome, would solve the question of a creator.
Yet if the opposite were true, it would prove there is no creator, in the very same way.
Who is stopping us from knowing the truth, wants to HIDE the truth.
Nonsense.
People do it all the time.
Judges 6:37-40 is one (quite ancient) example.
Performing repeatable, double blind experiments seems fairly trivially achievable. The belief that no-one ever has done so is just laughable.
originally posted by: chr0naut
Single common ancestor - untestable.
Gradual process reaching back millions of years - untestable.
Sorry, but if evolution is testable in all its sub-processes, then so is Intelligent Design, usually by the same criteria.
Also, something the scientificmethod is NOT good at is at weeding out theories and hypotheses that are evidenced against.
... like the fact that there is evidence against a single common ancestor, like vastly different branches of the phylogenetic tree where RNA transcription does not follow the same rules as other branches and particular codon sequences represent different stop encoding or different amino acids. That evidences against a single common ancestor somewhat.
... or where we see rapid heritable genetic change (epigenetic change) appearing in a population faster than a heritable trait can spread. That evidences against gradualism somewhat.
... or where we can see issues in achieving speciational change because the act/s of speciation would also remove breeding capability from the 'newly minted' organisms, making the speciated genome a genetic dead end, somewhat.
originally posted by: rnaa
a reply to: chr0naut
Nonsense.
People do it all the time.
Judges 6:37-40 is one (quite ancient) example.
Performing repeatable, double blind experiments seems fairly trivially achievable. The belief that no-one ever has done so is just laughable.
Fine then.
Lets see the documentation for those 'repeatable, double blind experiments' that seem fairly trivial to you.
Repeat that experiment described in Judges and document the results. No cheating. No word games.
originally posted by: rnaa
But there was no 'Theory of Evolution' until the 1930's at the earliest.
originally posted by: rnaa
The idea that we all come from one common ancestor is derived from the idea of evolution. If evolution didn't support OCA, then the idea of OCA would have been abandoned.
originally posted by: rnaa
Evolution implies OCA.
originally posted by: rnaa
Evolution was quite obvious to anyone who looked close enough. Darwin was just one of many who were trying to explain it. His contribution was the hypothesis of natural selection.
originally posted by: rnaa
The earliest actual theory didn't begin to take shape until the 1930's.
originally posted by: rnaa
How can you possibly imagine a scientist (however far back in history) coming up with the idea of OCA before the concept of evolution? It just doesn't make sense when there is obvious evidence of evolution all around him in nature, and zero obvious evidence for OCA.
originally posted by: rnaa
Yes. And bushes resolve to one trunk eventually (not necessarily true, but this is an imperfect metaphor).
What is the difference if it is a "bush of life" instead of a "tree of life"?
originally posted by: rnaa
If a speciation occurs due to HGT, both of the contributors were themselves part of the same phylogenetic tree at some point lower down the bush. HGT makes it more interesting, but doesn't negate anything, it doesn't invalidate the MES, it doesn't invalidate OCA.
originally posted by: rnaa
Have you any evidence that a life form from the phylogenic 'bush' where all modern life exists engaged in HGT with a life form from an entirely separate phylogenic 'bush'. No, you haven't.
originally posted by: rnaa
Any evidence of HGT is between life forms in OUR bush, which IN THEORY can be traced back to one common ancestor, the Last Universal Common Ancestor.
originally posted by: rnaa
NOBODY (with more than two brain cells to rub together) has EVER said that the MES is complete, perfect, or unchangeable.
originally posted by: PhotonEffect
a reply to: rnaa
originally posted by: rnaa
But there was no 'Theory of Evolution' until the 1930's at the earliest.
I've not seen a historical account of evolutionary theory that supports this claim. If you have a source it would be appreciated.
The first formalized scientific theory of evolution is widely accredited to Darwin – most everyone knows and accepts this.
originally posted by: rnaa
The idea that we all come from one common ancestor is derived from the idea of evolution. If evolution didn't support OCA, then the idea of OCA would have been abandoned.
What 'idea' of evolution are you referring to? (Can't tell if you're using "idea" and "theory" interchangeably or if by "idea" you're referring to the MES.)
The "idea" that we all come from one common ancestor is referred to as Common Descent, which is actually one of the main principles underpinning the current "theory" of evolution.
originally posted by: rnaa
Evolution implies OCA.
If by evolution you mean [Common] Descent with modification (est. by Darwin), then I have to agree. But is it so surprising? CD naturally supposes in its very meaning, an OCA. They imply each other in a way.
I don't know that anyone who conceived of common descent ( or some version of it) couldn't rather quickly conclude an ultimate ancestor. It doesn't seem like such a stretch to infer OCA. Point is, OCA didn't require being "extrapolated" out by the MES.
Immanuel Kant conceived it. Erasmus Darwin conceived it . Chuck Darwin conceived it. All well before the MES. No data extrapolation needed (unlike the Big Bang).
With all that said, it still doesn't change the fact that OCA is a hypothesis, One that is intimately connected to common descent, the theory. This is what I meant that the theory relies on the hypothesis.
Now - What's the impact to the theory if it turns out that there was more than one CA? (completely hypothetical of course)
originally posted by: rnaa
Evolution was quite obvious to anyone who looked close enough. Darwin was just one of many who were trying to explain it. His contribution was the hypothesis of natural selection.
Darwin formulated the first scientific theory of evolution that's still very much relevant today. That you refer to it as a hypothesis is completely incorrect.
originally posted by: rnaa
The earliest actual theory didn't begin to take shape until the 1930's.
This still needs a citation.
originally posted by: rnaa
How can you possibly imagine a scientist (however far back in history) coming up with the idea of OCA before the concept of evolution? It just doesn't make sense when there is obvious evidence of evolution all around him in nature, and zero obvious evidence for OCA.
Easily - the obvious evidence of evolution at that time was Common Descent. OCA is a natural extension
I've not seen a historical account of evolutionary theory that supports this claim. If you have a source it would be appreciated.
The first formalized scientific theory of evolution is widely accredited to Darwin – most everyone knows and accepts this.
Naturalists began to focus on the variability of species; the emergence of paleontology with the concept of extinction further undermined static views of nature. In the early 19th century Jean-Baptiste Lamarck (1744 – 1829) proposed his theory of the transmutation of species, the first fully formed theory of evolution.
In 1858 Charles Darwin and Alfred Russel Wallace published a new evolutionary theory, explained in detail in Darwin's On the Origin of Species (1859). Unlike Lamarck, Darwin proposed common descent and a branching tree of life, meaning that two very different species could share a common ancestor. Darwin based his theory on the idea of natural selection: it synthesized a broad range of evidence from animal husbandry, biogeography, geology, morphology, and embryology. Debate over Darwin's work led to the rapid acceptance of the general concept of evolution, but the specific mechanism he proposed, natural selection, was not widely accepted until it was revived by developments in biology that occurred during the 1920s through the 1940s. Before that time most biologists regarded other factors as responsible for evolution. Alternatives to natural selection suggested during "the eclipse of Darwinism" (c. 1880 to 1920) included inheritance of acquired characteristics (neo-Lamarckism), an innate drive for change (orthogenesis), and sudden large mutations (saltationism). Mendelian genetics, a series of 19th-century experiments with pea plant variations rediscovered in 1900, was integrated with natural selection by Ronald Fisher, J. B. S. Haldane, and Sewall Wright during the 1910s to 1930s, and resulted in the founding of the new discipline of population genetics. During the 1930s and 1940s population genetics became integrated with other biological fields, resulting in a widely applicable theory of evolution that encompassed much of biology—the modern synthesis.
Easily - the obvious evidence of evolution at that time was Common Descent. OCA is a natural extension
Gravity stops pulling objects which are in orbit. This is when we see astronauts floating. No gravity here, in space!
Earth's gravity also holds the moon in place. Not an astronaut, though. He floats in space. Where gravity doesn't pull him to Earth, or the moon. But Earth's gravity DOES hold the moon, okay??
originally posted by: Barcs
originally posted by: chr0naut
Single common ancestor - untestable.
Gradual process reaching back millions of years - untestable.
Common ancestry is testable, gradual process reaching back millions of years is testable. Nobody says you can test for the LUCA, but you can observe the fossil record and see the progression of organisms over time dating back billions of years and extrapolate that pretty easily. To pretend LUCA doesn't exist means you need a completely different explanation for the diversity of life on earth, so your claim does not even make sense. LUCA is an inevitable implication of evolution. You really don't get what a scientific theory is and that's why your arguments are terrible. LUCA is the only thing that makes sense based on the evolutionary process and documented fossil history.
Sorry, but if evolution is testable in all its sub-processes, then so is Intelligent Design, usually by the same criteria.
Dumbest thing I've ever read from you. There isn't a single test that can confirm any aspect of ID. Not one.
Also, something the scientificmethod is NOT good at is at weeding out theories and hypotheses that are evidenced against.
That's a real statement?
... like the fact that there is evidence against a single common ancestor, like vastly different branches of the phylogenetic tree where RNA transcription does not follow the same rules as other branches and particular codon sequences represent different stop encoding or different amino acids. That evidences against a single common ancestor somewhat.
That is not evidence against LUCA in the slightest. 4 billion years of evolution changes functions of things.
... or where we see rapid heritable genetic change (epigenetic change) appearing in a population faster than a heritable trait can spread. That evidences against gradualism somewhat.
NOT evidence against LUCA. What a joke. You just love your buzzwords. Epigenetics doesn't change a goddamn thing about common ancestry. It's just a different way evolution can occur.
... or where we can see issues in achieving speciational change because the act/s of speciation would also remove breeding capability from the 'newly minted' organisms, making the speciated genome a genetic dead end, somewhat.
This is the oldest straw man in the book. Why have your arguments gotten worse over the years... Speciation usually takes numerous generations. Jesus Christ dude, I have already specifically discussed this exact point with you in the past. You do absolutely nothing to upgrade your knowledge or better yourself, you just deny and exploit semantics repeatedly. You STILL don't understand micro or macro evolution and still don't understand speciation and STILL don't even grasp what a scientific theory is. Get a real argument.
originally posted by: Barcs
originally posted by: rnaa
a reply to: chr0naut
Nonsense.
People do it all the time.
Judges 6:37-40 is one (quite ancient) example.
Performing repeatable, double blind experiments seems fairly trivially achievable. The belief that no-one ever has done so is just laughable.
Fine then.
Lets see the documentation for those 'repeatable, double blind experiments' that seem fairly trivial to you.
Repeat that experiment described in Judges and document the results. No cheating. No word games.
I REALLY hope he was joking with that nonsense. It reminds me of when he said he prayed for rain and it rained, so it counts as evidence for god. Absolute laughable nonsense.
originally posted by: rnaa
a reply to: turbonium1
Gravity stops pulling objects which are in orbit. This is when we see astronauts floating. No gravity here, in space!
Wrong, sorry. Gravity is what keeps those astronauts in orbit.
Earth's gravity also holds the moon in place. Not an astronaut, though. He floats in space. Where gravity doesn't pull him to Earth, or the moon. But Earth's gravity DOES hold the moon, okay??
Yes, Okay.
Except that the astronaut is 'floating in space' in exactly the same way the the moon is 'floating in space'. In other words, both the moon and the astronaut is 'held' in place(i.e. in orbit) by the same
effect of gravity.