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Member (Idle past 1781 days) Posts: 2161 From: Cambridgeshire, UK. Joined: |
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Author | Topic: Where did the Egyptians come from ? | |||||||||||||||||||||||||||
John Inactive Member |
quote: No. That is not what I assumed. I assumed that the generations cycle around thirty years, which is reasonable if on the short side. I calculated an average and extrapolated. For a quick illustration, I think I did pretty well. A quick review of what I left out: 1) nutrition-- after the flood, very very bad Poor nutrition will increase the infant mortality rate, decrease survival to adulthood of those infants that do survive, delay the onset of puberty and thus reproduction, increase the chance of miscarriage, increase the chances the mother will die in childbirth or shortly thereafter due to general physiological weakness associated with malnutrition(reducing her reproductive potential), increase the time lag between pregnancies 2) freshwater--- also very bad after the flood Much the same as poor nutrition 3) accidental death and disease not associated with nutrition Well, pretty self explainatory Take a look at around prb.org ------------------http://www.hells-handmaiden.com
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Quetzal Member (Idle past 6174 days) Posts: 3228 Joined: |
Hey blitz!
Although this is slightly off-topic, I'm hoping you can answer a question for me. I've asked it a number of times in various places, but no one seems to be able to help me out. To wit: if the current world population is derived from four breeding pairs - which apparently didn't interbreed - where can I read about the evidence for the incredible genetic bottleneck that took place in the population? Moreover, where is the evidence of a genetic bottleneck of staggering proportions in even one non-human species alive today? I mean, given the relatively short time span (4000 years or so), there should be evidence of a gigantic bottleneck in at least those species represented as "kinds" on the ark, no? Thanks for your help.
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John Inactive Member |
quote: oops... it is four pairs isn't it? I said eight in a previous post.
quote: ... which in fact should be every extant species, no? ------------------http://www.hells-handmaiden.com
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gene90 Member (Idle past 4125 days) Posts: 1610 Joined: |
[QUOTE][B]Moreover, where is the evidence of a genetic bottleneck of staggering proportions in even one non-human species alive today?[/QUOTE]
[/B] California condors, Florida panthers and Bengal tigers don't count.
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blitz77 Inactive Member |
Would you be talking about genetic diversity bottleneck or geological evidence for the bottleneck? Changes by microevolution occur rapidly in small populations, as you yourself should know. In large populations, diversification is a lot slower.
How about the interesting feature in the hominid fossil record for the abrupt disappearance of homo sapiens between 80 000 and 40 000 years ago (the dates are arbitrary.)? Incidentally, the other article I mentioned in "reordering of fossils" topic could use the Cambrian explosion as an example. The other model (I'm not saying that it's correct) explains the lack of larger animals by saying they were wiped out completely then (except for those on the ark) and all the fossil evidence for them before the flood. Thus, after they get off the ark, there is then fossil evidence for them. Mitochondrial studies of women from around the world suggested that the last common ancestor of modern man (actually women) appeared within the last 200,000 years, which is much more recent than previously thought. From the perspective of male genetics, scientists have examined a gene (ZFY), which being on the Y chromosome, is passed down only from father to son. 38 men were chosen from around the world. Scientists determined the actual genetic sequence in each man for this gene, which is 729 base pairs long. To their surprise, all men had identical genetic sequences (over 27,000 base pairs analyzed). Scientists have calculated the most probable date for the last common ancestor of modern man, given the sequence diversity from modern apes. Using two different models this date is either 270,000 or 27,000 years ago (note that these dates are the suggested maximum figures). [This message has been edited by blitz77, 08-06-2002]
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gene90 Member (Idle past 4125 days) Posts: 1610 Joined: |
[QUOTE][B]How about the interesting feature in the hominid fossil record for the abrupt disappearance of homo sapiens between 80 000 and 40 000 years ago[/QUOTE]
[/B] Disappearance?
[QUOTE][B]The other model (I'm not saying that it's correct) explains the lack of larger animals by saying they were wiped out completely then (except for those on the ark) and all the fossil evidence for them before the flood.[/QUOTE] [/B] YECs should agree on a common scenario. This version of the Flood destroys all fossils that existed prior to it?
[QUOTE][B]Mitochondrial studies of women from around the world
[/QUOTE] [/B] Actually you can do mtDNA studies on men as well, everyone has mitochondrial DNA. However, it is always transmitted exclusively down by the mother.
[QUOTE][B]Using two different models this date is either 270,000 or 27,000 years ago[/QUOTE] [/B] Then more studies are needed until a date is more strongly supported by the evidence. That is, after all, how science works. Are we supposed to be troubled by the fact that there are two camps? And by the way, either date rules out a young Earth. Why are you a YEC when you are aware of so much evidence against your beliefs?
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John Inactive Member |
quote: I knew I wasn't supposed to be here! ------------------http://www.hells-handmaiden.com
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John Inactive Member |
quote: Either works for me, if the dates are right, thought the genetic evidence would pack more punch.
quote: But aren't we talking about a genetic bottleneck? The population is small by definition.
quote: Just a thought, but you mention the mDNA studies that suggest we all have a common ancestor aroung 200k ago. This indicates a genetic bottleneck and probably a severe one. Well... very few people == very few or zero fossils until the population rebounds sufficiently.
quote: But the flood carefully orders the bones of the dead critters. It doesn't wipe them out altogether. And what about pre-flood deposits? ------------------http://www.hells-handmaiden.com
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axial soliton Inactive Member |
quote: quote: There is one fundamental point at the genesis of the Noah scenario that is troubling. Is God actually telling the children of Shem, Ham, and Japheth to repopulate the Earth with each other? May we assume this includes cross-generational breeding, as well? Finally, 367 years later, all the people of Egypt, Mesopotamia, Africa, Europe, and all of Asia are descended from these three couples (plus any cross-generational breeding)?
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blitz77 Inactive Member |
quote: quote: --Ross, 1993, p. 141 The information I posted to you before with those large dates were from evolutionist sources-so of course they would use those dates. I could have used creationist interpretations which would put them at a much younger date, but I didn't, because most likely you would put them off as balderdash. And also, you didn't read what I wrote. It is the suggested MAXIMUM date. Since all of those thousands of bases are the same, it could mean a date of 5000 yrs ago there was a common ancestor.
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Quetzal Member (Idle past 6174 days) Posts: 3228 Joined: |
quote: Actually, I'm talking about the evidence that would be obvious in the genomes of every species alive today of either extreme polymorphism or extreme reduced polymorphism that occur in founder populations along the lines of what we observe in elephant seals and cheetahs (for example), or in isolated populations such as the Devils hole pupfish (Cyprinodon diabolis). Changes by "microevolution" may or may not be rapid - it depends on random chance and changes in the statistical frequency of alleles through genetic drift. Which, btw, could just as easily eliminate alleles as increase their frequency. Besides which, variability as you suggest - which depends on mutation rates - still has to become fixed. To get the incredible diversity of, for example, cat kinds from a single pair of "essential cats" would require not only a mutation rate thousands of times greater than is currently observed, but also true cladogenesis events occurring many orders of magnitude more often than can even be conceived. If things occurred that rapidly, we should be observing brand new species of vertebrates, for example, at the rate of dozens a year.
quote: I'll look at the other thread, but neither scenario makes any sense. In the first place, why do you claim the dates are "arbitrary"? In the second, it seems pretty convenient that all traces of "larger animals" were erased in the Cambrian Flood. If that's the case, and only those animals on the ark left to make fossils after debarking, what's the deal on amphibians in the Ordovician but not Cambrian (i.e., contiguous with the weird beasties that must have been on the ark as well in those layers), the first reptiles in the Pennsylvanian but not the Cambrian, the first mammals in the Triassic but not any of the lower levels. (Creationists really should use the Permian-Triassic extinction instead of the Cambrian radiation). Finally, the whole shebang begs the question of all those pre-Cambrian fossils (especially the Vendian fossilary, and those 3.5 gya stromatoliths).
quote: Okay, so we're somewhere around three quarters of a million years as the date of your flood? How does this square with the 4000 years the YECs keep babbling about? How about the evidence for the bottleneck?
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blitz77 Inactive Member |
quote: I'm not an anthropologist so don't ask me. You might prefer to read the article: -herePossibly this quote has the solution to your question on amphibians quote: quote: No those years are the statistical MAXIMUM, as those thousands of bases were identical. Since those dates are the maximum, it could easily be 5000 yrs. [This message has been edited by blitz77, 08-07-2002]
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Quetzal Member (Idle past 6174 days) Posts: 3228 Joined: |
Oh well, as long as all we're doing is quoting somebody else's website, try this as a rebuttal to your amen.org citation:
quote: Quoted section from Coal deposits: evidence for the Noah's Flood "model"? Citations referenced can be found at the bottom of the article. Thanks Patrick! Basically, your floating mat theory doesn't hold water (sorry, couldn't resist the pun) because of other associated features present in almost every coal bed in the world. Some of the features are geologic, some represent bioturbation, cross-bedded fossils like trees, existing paleosols below and between beds, and numerous other features. Now that we've gotten that out of the way, would you care to answer my question? Thanks.
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axial soliton Inactive Member |
This thread has grown beyond the Egyptians. The way that creationists argue their points needs to be elucidated because it highlights shortcomings in their story and their attack on the scientific record. For example, in the link pointed out by blitz77, http://www.amen.org.uk/eh/science/flodpg/flodpg3.htm , the author, Paul Garner, quotes only Genesis 7:4, 11, 21-23 for all the scientific details he tries to bring to bear. Of 8,565 words in his discourse, 136 are from the Bible, 8,429 are facts, scientific observations, and scientific-sounding analysis. This is not balanced. Shouldn't there be much more text taken from the bible and used in this article to support the creationist position on this crucial flooding event? None of the science and none of Garner's analysis is from the Bible. What Garner is trying to do is to select from a group of facts and observations developed by scientists, to show there are holes in what science knows, therefore creation must be true. That line of reasoning is insubstantial and illogical because it can be used to pretend-prove absolutely anything.
Here are Garner's only quotes from the Bible:
quote: There is nothing in these Biblical passages about superheated water, magma, fossils, "vast underground water sources beneath the pre-Flood continents", dinosaurs, trilobites, on and on. The Bible is a fixed story, while science is growing in its facts and observations hour-by-hour. Yet Garner tries to graft creation onto science by selectively ignoring facts and observations. He is trying to use certain facts and observations from science, while ignoring others, to show that technologically, creation must be true. Take a look at the text of the Bible and the text of his scientific-sounding discourse. How are we supposed to logically trace from the generality of the Biblical passages to the specificity of the scientific record? Maybe the better question is why? Nothing of the facts and observations known to science today were deemed relevant to include in the Bible by God, or the writers of the Bible. So, why try to do it now? The record of science is directly and fundamentally connected to what we can touch and measure around us. Maybe God or the writers of the Bible did not know what science knows today. Anyway, that large discrepancy is the problem of creationists, not technology. Shouldn't it be obvious that there is a chasm-sized disparity between the fixed Bible story and science that evolves as more facts and ovservations are recorded and integrated? For a set of observations to be reliable and accurate, they have to be repeatable. For example, a farmer has to know a series of steps to execute resulting from environmental factors that he has measured, to grow food for us. Here is a series of steps that highlight something Garner did not intend:
quote: Let's forgive him for mistakenly using the word "rocks" to describe the sediments that suddenly buried the life in different periods of Earth history. Falling rocks would have crushed the life before it fossilized, rather than preserve them. We establish that radiometric dating puts an age on the Earth of 4.5 billion years. The rate of radioactive decay is measured precisely in the lab, so it is unnecessary to discuss its accuracy or its relevance. Note that isotope ratios are one of the relevant facts missing from creationist arguments. In the first passage from Garner- introduction of a 4.5 year-old date of the earth by scientists, introduction of radiometric dating methods which demonstrate ancient origins of sedimentary layers, mention of a "big problem", mis-use of the word "rocks" in describing the sediments that suddenly buried trilobites, and other life in different eras and periods, and finally, "missing millions of years". There is no logical connection proceeding from 4.5 billion years old, through sudden burials, to missing millions of years. The crucial thesis of his discourse is crossed in the second statement. Put plainly, there is no series of steps that take one from 4.5 billion years old, to "missing millions of years" that allow for creation 5,000 years ago. He is actually claiming the loss of Billions of years, not "millions of years". An honest mistake? Totally illogical, but Garner introduces radiological dating of 4.5 Billion years, radiological dating of sedimentary layers containing fossils of 100's of millions of years to show the "flood" was 5,000 years ago. How can the "flood" be 5,000 years ago when mammal fossils are 5,000 times older than that? In the third passage where Garner attempts to graft creationism to the scientific record, the logic is incomprehensible. By incomprehensible, I mean that you cannot write down the proviso-facts he presents and the steps of his presentation and connect them together like dots. In a true scientific analysis, this is exactly what you can do. Garner says that he and other creationists have a problem that the "geological record" of the 286,000,000 years between the late Carboniferous to the Pleistocene periods. That the 286,000,000-year-old geological record was laid down "during the turbulent centuries after the Flood" of 5,000 years ago. It even sounds incomprehensible to try and repeat what the man said. Nowhere in the Biblical passages is there any discussion pertaining to this. So, what is the purpose behind generating an unanchored speculation that is internally incomprehensible? A recommendationScience provides the technology for all people, everywhere, to live, prosper, and enrich their minds. Science does not provide a roadmap for philosophy. Humans need a strong institution from which to draw their thinking on morality, integrity, etc. Why can't religion settle for that job?
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wj Inactive Member |
quote: This isn't one which the vast majority of people will lose any sleep over , except perpaps the biblical literalists who seem to work overtime tying themselves in knots trying to reconcile biblical inerrancy and biblical literalism "And he made a molten sea, ten cubits from the one brim to the other: it was round all about, and his height was five cubits: and a line of thirty cubits did compass it round about."1 Kings 7:23 KJV Incidentally, I'm not sure why biblical literalists seem to prefer the King James version. Is it easier to determine the correct meaning of a version written in a language 400 years old? So, using blitz77's logic, does the story mean than the diameter was inerrantly 10 cubits and the circumference was rounded off to 30 cubits? Wouldn't 31 be a better rounding off? Or, was the circumference inerrantly 30 cubits and the diameter rounded up to 10 cubits? Or should we read the literal meaning of the verse that the circumference was 30 cubits and the diameter 10 cubits and therefore pi has to be wrong because the bible says so! Using blitz's same rationalisation, was it 6 days of creation or maybe 5 and a bit, or did the divinity slip in some overtime on the sixth evening? Did it rain for 40 days and 40 nights, or was it approximately 5 weeks with some light showers preceding it? Was it inerrantly 7 pairs of clean animals or approximately? "22 Everything on dry land that had the breath of life in its nostrils died." Genesis 6 KJV Or approximately everything died? Maybe a few got through? I'll leave blitz to give us the rounded off inerrent answers.
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