home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!spool.mu.edu!darwin.sura.net!jvnc.net!netnews.upenn.edu!pender.ee.upenn.edu!rowe
- From: rowe@pender.ee.upenn.edu (Mickey Rowe)
- Newsgroups: talk.origins
- Subject: Re: In case Bales has convinced you of his honesty...
- Message-ID: <98660@netnews.upenn.edu>
- Date: 21 Nov 92 19:24:52 GMT
- References: <7695@tekig7.PEN.TEK.COM>
- Sender: news@netnews.upenn.edu
- Organization: University of Pennsylvania
- Lines: 138
- Nntp-Posting-Host: pender.ee.upenn.edu
-
- I probably shouldn't, but I'll jump in here. I don't think that Bob
- is lying in the sense that he is saying something that he believes is
- untrue. IMHO it seems that Bob is just phenomenally incompetent about
- understanding the objections to his various "explanations". Bob, I
- think you're better off accepting the "liar" tag personally...
-
- In any case:
-
- In article <7695@tekig7.PEN.TEK.COM> bobb@tekig1.PEN.TEK.COM
- (Robert W Bales) writes:
-
- }Jon Livesey writes:
- ...
-
- }>Mr Bales was asked to explain the congruence of multiple instances of
- }>isochrons, and he *failed* to do so.
- }
- }On the contrary, I have explicitly addressed this point a number of
- }times.
-
- However, you have never given the explanation which you yet again
- *claim* to give in this post. See below.
-
- ...
-
- }In other words, I gave examples of processes which could cause isocrhons to
- }agree. And examples of processes which could cause isochrons to agree form,
- }*by definition*, an explanation for how they could agree.
-
- This you most definitely have not done (though I believe you might
- think you have).
-
- }The characterization of my examples as "other processes at work that we don't
- }fully understand" is misleading. The impression is that I have just waved
- }my hands and said "something could happen." The reality is that I have given
- }examples of processes which textbooks on radioactive dating say can give wrong
- }dates.
-
- No, the reality is more like you saying "something could happen" to
- make those wrong dates just happen to agree.
-
- } The reality is that I have given examples which are known -- by old-
- }earth theorists -- to have given the wrong dates.
-
- But you have *not* then shown that any of these examples lead to
- *consistent* wrong dates. It's truly amazing to me that you can type
- the following and think that it has "explained" the problem:
-
- }In the September 24 posting, I said:
- }
- } For the better part of a year, starting with a formal debate with
- } Chris Stassen, most of most of my postings ings dealt with the age
- } of the earth. I mentioned a number of times that isochron dates
- } are based on measurements of radioactive isotopes and that radio-
- } active isotopes are known, both from theoretical considerations and
- } actual measurements, to at times be poor indicators of age.
- } I attributed the errors in isochron dates to these factors. The
- } statement was made (many times) that isochrons were self-checking
- } and hence not subject to these errors. I responded that this was so
- } according to a theory which has not been validated.
-
- This paragraph indicates a complete lack of understanding of topics
- which have been bandied about here ad nauseum in direct response to
- you (e.g. how would you "validate" them? Do you want 3 billion years
- of videotape showing the rocks existing?). More importantly for the
- subject at hand, it does not say anything about why *different*
- isochrons should agree on the measured date.
-
- }This is in the nature of a summary. However, on or about October 27, I wrote
- }the following, which is *more* than a "slightest attempt."
- }
- } I must not have been clear enough in what I said. Experiment and
- } observations indicate that isotope ratios are a reflection of all
- } geological processes which have occurred. Thus, the values and
- } consistancy of the results depends upon what processes have
- } occurred. Chris is claiming, however, that consistent results are
- } a special case, in that of all the processes which affect isotope
- } rations, only *one* -- the passage of time -- could produce
- } such results. This assertion is stated as if it is a self-
- } evident fact. It is not.
- }
- } Again, Chris is making the claim that internal consistancy is
- } evidence of accuracy. Throughout science, this is not assummed
- } to be the case.
-
- Really? What other evidence of accuracy is there, Bob?
-
- }>As soon as I saw that, I posted a request that he try to actually
- }>answer the question. I even asked him to spell out what processes
- }>he had in mind, and how they could cause five isochrons to coincide.
- }
- }>As usual, he simply went to earth, and ignored the posting.
- }
- }I don't remember now which postings I responded to. However, the quotes show
- }that I did not ignore the subject. In addition, on November 4, I posted a
- }quote from "Use of Correlation Statistics with Rubidium-Strontium Systemics,
- }by Felix Chayes _Science_, vol 196, June 10, 1977, pages 1234-1235
- }
- }
- } "It is possible, of course, that the common element bias is
- } negligibly small, but this is a matter requiring demonstration
- } or convincing rationalization in each specific case. That the
- } denominator may perhaps be serving only as a convienient scaling
- } device provides no escape; use of an uncorrelated scaling
- } variable whose varience is sufficiently large will impose strong
- } positive correlation on *any* pair of variables whose negative
- } correlation is less than perfect. That the scaled data cluster
- } closely about a regression line is then mearly a consequence of
- } the choice of scaling variable and says nothing about the nature
- } of the relation between the variables being scaled." (page
- } 1234)
-
- Once again, Bob, you have *NOT* addressed a scenario whereby different
- ^^^
- methods will agree. Unless I'm deeply mistaken, this quote was part
- of a passage describing that it is possible to get a single isochron
- measurement to produce an apparent age even if said result is
- spurious. It does *NOT* say anything about a mechanism that would
- ^^^
- lead multiple isochron measurements to consistently indicate a
- spurious age.
-
- }The statement I am refuting is that I have no answered as to how five
- }isochrons could agree but still be wrong. Since the lines quoted above are
- }an answer to/explanation of this,
-
- If you really believe this, then it's not fair to call you a liar.
- Just abysmally obtuse.
-
- }My dispute with Jim is of long standing. But since Jon and Michael appear to
- }have decided that I am a liar because of this one case, I ask them to tell me
- }in what sense my quotes above are not an answer/explanation [*]
-
- Can you see it yet?
-
- } Bob Bales
-
- Mickey Rowe (rowe@pender.ee.upenn.edu)
-