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Better late than never
Professor Aviezer replies to critique after 13 years of silence
By Mark Perakh
Posted on July 25, 2012
In 1999 I posted to the Talk Reason
website a critical review of Professor Nathan Aviezer's book In
the Beginning [1] and of his article The
Anthropic Principle published in the Jewish Action
journal [2]. My review was titled The End of the
Beginning (see www.talkreason.org/articles/aviezer.cfm)
[3]. Soon afterward one of my friends (on his own
initiative) sent a copy of that essay to Aviezer and asked him to
respond. Professor Aviezer chose to ignore my friend's
request. Of course, Professor Aviezer was under no obligation to
respond to critique. In the following years my essay evoked some
discussion on the internet, but Professor Aviezer remained silent in
regard to my critique. In 2003 my book Unintelligent Design
was published [4] wherein one chapter was a slightly modified
and updated version of my essay in question. Professor Aviezer
remained unresponsive to my critique. Suddenly, in February 2012, 13
years after my review of his work appeared, Professor Aviezer posted
a reply (see torahmusings.com/2012/02/fossils-and-faith) [5].
This is accompanied by a reference to a rabbi, who, according to
Aviezer, pointed out my essay and told him to respond. Since Aviezer
received a copy of my essay from my friend many years ago, it seems
odd that to finally respond to my critique Aviezer had to wait 13
years until a rabbi urged him to do so.
Professor Aviezer's post is
accompanied by 39 comments from readers. The website
"Hirhurim" caters to religious Jews, and all 39
commenters seem to belong in that category. Nevertheless, not a
single comment there supports Aviezer's position. Some
commenters point disapprovingly to the unwarranted "inflammatory"
rhetoric by Aviezer. Most of the commenters reject Aviezer's
treatment of probabilities. Some of them directly justify my
position. Some others tell Aviezer that he appeals excessively to
authorities and is too concerned with his own credentials.
Let me turn to the arguments offered by
Aviezer, which allegedly refute my critique.
One of Aviezer's "arguments"
is quite original and illuminates in a vivid way the level of his
discourse. Discussing a certain point in my essay, Aviezer wrote
that if that point were correct I certainly would have received the
Nobel Prize! Since, wrote Aviezer, I have not received the Nobel
Prize (or any other price, Aviezer added) the point in question was
wrong. I will address "any other prize" a little later.
As to the Nobel Prize, I don't recall any mention of Aviezer
among the Nobel Prize winners. Must therefore some of Aviezer's
assertions be wrong because he was not awarded a Nobel Prize for
them? This argument of his seems to reveal in a spectacular way that
perhaps at least some of his asseverations ought to be accepted
not-quite-seriously. The funniest part of the story is that the
point for which, if it were true, I would have received the Nobel
Prize, does not exist. (According to Aviezer I allegedly claimed that
I know how the life originated. Of course I never claimed anything
even remotely hinting at such knowledge on my part. Aviezer just
invented it using the well-known technique of destroying a straw
man.)
Prior to discussing my critical
comments, Aviezer makes a general statement, claiming that in my view
his book is "total nonsense." There was no such
assertion in my review. Since it is hardly probable that in a book by
a respected professor "everything" is nonsense,
apparently Aviezer made that assertion in order to "demonstrate"
my lack of objectivity, making it seem that my essay was just a
screed dictated not by objective analysis but rather by the prejudice
of a "secularist" against a believer. (For Aviezer the
word "secularist," which he has applied to Professor R.
Falk of the Hebrew University, seems to have a pejorative
connotation.) However, later in his response Aviezer twice quotes
from my essay such statements as "This statement by Aviezer is
correct," or "Very good, Professor Aviezer."
(Some more quotations of a similar character could be added.)
Apparently he does not notice that the general statement in the
beginning of his reply contradicts the two quotations in question.
In fact, when offering critique of those parts of Aviezer's (or
anybody else's) output which in my view are faulty, I am always
happy to give respect where it is due.
Let me now address the Aviezer's
supposed rebuttals of my critique. He wrote that my critique
contained "blatant errors." Unfortunately, in pointing
to those supposed "errors" Aviezer displayed the same
deficient comprehension of the matter he endeavored to discuss that
was evident in his acclaimed book. In particular, his treatment of
probabilities shows his lack of understanding of the actual meaning
of probability. Unlike the case of the Big Bang theory (which will
be discussed a little later), the theory of probability is rather
close to my expertise. In particular, I taught statistical physics
for many years both to undergraduate and to graduate students.
Statistical physics contains as its basic foundation the theory of
probability. Hence I had to study the theory of probability in depth
and gave it a lot of thought. I think there is hardly any major
textbook or monograph on probability theory in Russian or English
which I have not studied. About ten years ago I wrote an essay on
"uses and misuses of probabilities" (see
www.talkreason.org/articles/probabilities.cfm [6]) where certain errors, common in writings of amateurs trying
to utilize probabilistic concepts, are discussed in a way accessible
to non-experts.
In order to discuss probability
Aviezer may need first to refresh his knowledge of the fundamentals
of probability theory. I may recommend the recently published
excellent textbook [7] on probability and statistics by Peter
Olofsson which combines a high level of discourse with a clear
explanation of many difficult points of this wonderful discipline.
In my review of Aviezer's book I
addressed his errors in discussing probabilities and his reply
contains nothing that would in any way refute my comments. I will not
repeat here my critical remarks about Aviezer's mistreatment of
probabilities, as they are freely available in the essay. Instead,
I'll address here only those points in his rejoinder which he
used to allegedly prove the validity of his position on probability.
(By the way, he assaults not only my critical remarks, but also those
by Professor R. Falk of the Hebrew University who correctly
demonstrated some of the faults of Aviezer's treatment of
probability.)
Perhaps an opinion could be suggested
that since Aviezer is a physicist rather than a probability expert,
we can't demand from him a professional treatment of
probabilities. Indeed, Aviezer is not alone in his misinterpretation
of probability. Probability theory contains many tricky and subtle
points which require a considerable time and effort for their
comprehension. Perhaps a good example is the story about the
so-called Monty Hall problem. Its solution is highly
counter-intuitive, so even some outstanding mathematicians erred in
its interpretation. Recently a brilliant young professor of
mathematics Jason Rosenhouse published a whole book [8
dedicated to that, on a first glance quite simple but in fact rather
tricky problem which puzzled even some great minds. Aviezer should
not be ashamed by his insufficient understanding of probabilities, as
he is in good company. This does not mean, however, that his errors
should not be addressed. As a serious scientist, he should not try to
reject critique automatically but rather admit that he is not an
expert in probabilities, and try to correct his position. I wish him
success in that. While it may seem like self-promotion, for which I
apologize, I dare to point to my essay on uses and misuses of
probabilities already mentioned above (
www.talkreason.org/articles/probabilities.cfm).
Now let us see what specific arguments
Aviezer offers regarding my (and Falk's) critique. One of
Aviezer's notions is based on the very low calculated
probability of a spontaneous emergence of biological systems.
Addressing this notion, I pointed to Aviezer's inconsistency.
Following some earlier publication by G. N. Schlesinger, Aviezer
considers the case of a one-dollar bill that is retrieved from a
pocket and found to have a certain serial number on it. What is the
probability that the randomly chosen bill will have exactly that
number? Aviezer answers that it is 100% because we ask our question
after we have already seen the number. This is correct. And it is
essentially what Professor Falk addressed, just using another
example. However, when discussing (instead of a particular dollar
bill) the universe and/or the emergence of life, Aviezer asserts that
the probability of spontaneous emergence is negligibly small. If,
though, in Aviezer's logical construct we replace the words
"one-dollar bill" with "universe" or "life
emergence," his logic would be fully preserved and the
conclusion would be that the probability of spontaneous appearance of
our universe (or of biological life) is 100%. Of course, this whole
set of notions is meaningless, since frequentist-probabilistic
considerations are irrelevant when the universe or life are discussed
(as some of the commenters to Aviezer's post correctly noted).
Aviezer counters the above discourse
(as well as that of Falk) by stating that Falk and I have "missed
the point." Namely, there is nothing special in finding
a specific number on a one-dollar bill. Each bill has a certain
number on it, so discovering that number does not constitute anything
special. On the other hand, the emergence of the universe is
indeed a special event, quite unordinary one. I may agree
that the emergence of life or of the universe can be viewed as a very
special event while finding a specific number on a bill is not.
However, in this case it is Aviezer who has "missed the point."
The fact is that the theory of probability does not know the concept
of a "special event." (I have discussed this point in
detail in my essay on probabilities, mentioned above.) For example
consider tossing a die with each of its six facets bearing one of the
six letters of the alphabet (A,B,C,D,E,F). Toss the die, say, a
hundred times and register the letters appearing on the upper facet.
In each run we get a set of 100 randomly chosen letters, containing
the six first letters of the alphabet, say ACFEBAABFCCFD…. Or
BFCAABFC… etc. Each such set has the same very low
probability of appearance. What if in one of the runs we get the set
which looks like ABCDEFABCDEFABCDEF etc? It amazes us because it is
ordered. What if the set looks like AAAAAAAA….. We are
amazed even more, because the appearance of such a set has a
negligible probability. From our human perspective the highly ordered
set is "special." However, from the standpoint of
probability theory no set, however amazing it looks to us, is
"special." All sets have exactly the same
minuscule probability of appearing, and the ordered set, from a
probabilistic standpoint, in no way differs from any other of the
possible sets. While the emergence of universe or of life may be
viewed, if desired, "special," there are no frequentist
connotations. Here Aviezer makes one more wrong assertion. In his
opinion, events of exceedingly small probability simply do not occur.
Wrong. Events whose probability is very small occur routinely all the
time, and from the standpoint of probability theory none is
"special." Indeed, if Aviezer were right, then in the
example with a die no set would have emerged after one hundred
tosses, as all possible sets have the same minuscule probability.
Such a conclusion, which follows from Aviezer's assertion that
events of very small probability just do not occur, is obviously
absurd.
In general, frequentist -probabilistic
estimates are irrelevant for the problem of the universe's or
life's emergence. As professional probabilists would tell you,
unique events have no frequentist interpretation. Therefore
Aviezer's probabilistic exercises are meaningless. This has
been correctly pointed to in several of the comments to Aviezer's
post. (More on that in my essay on probabilities, mentioned above.)
While a frequentist approach is
hopelessly inadequate for solving the puzzle of universe's and
life's emergence, perhaps an alternative (still probabilistic)
approach, namely one based on Bayes's theorem could be more
fruitful? In fact, the Bayesian approach, unlike the frequentist one,
is quite fruitful for shedding light upon the problem of universe's
and/or life's emergence. In his book Aviezer did not mention
the Bayesian approach. Well, many other authors did. In particular,
in 2000 I posted an article [9] (see
www.talkreason.org/articles/anthropic.cfm) wherein I considered the "fine-tuning" argument in
favor of the supernatural emergence of the universe and of life
(which is endorsed in Aviezer's paper [2] "The
Anthropic Principle" in the Jewish Action magazine).
Alas, an analysis based on a particular form of Bayes's theorem
shows that arguments in favor of the supernatural emergence of the
universe and/or life are untenable. (A slightly modified version of
that post was later also printed in the Skeptical Inquirer
magazine.) A more detailed discussion of that problem, based on the
full form of Bayes's theorem, was offered by Ikeda and
Jefferys [10] (see www.talkreason.org/articles/super.cfm). On the Talk Reason website there are several more articles by
various authors, all concluding that the hypothesis of a supernatural
origin of the universe and/or life is not supported by logic or
evidence.
Now let me
address Aviezer's alleged refutation of the part of my critique
regarding the Big Bang theory. Aviezer asserts that in my review I
expressed doubts regarding the currently prevalent theory of the
universe's beginning in a Hot Big Bang (HBB). He very
energetically pounces upon the grievous sin I allegedly committed. In
fact all the energy Aviezer spent on that matter is a waste. Not only
I did not cast doubts anywhere in my review on the HBB theory, but I
quite unequivocally stated that nothing in my review should be
interpreted in such a way. What I did write in my review pointed to
the inaccuracy of Aviezer's notion according to which ALL, i.e.
100% of physicists adhere to HBB. Such a thesis is not accurate
because, as I wrote, there exist alternative theories suggested by a
number of scientists. I listed those alternative theories but nowhere
stated that I accept any of them. In fact I abstained from uttering
any view on the validity of HBB. I am not a cosmologist (neither is
Aviezer) and therefore don't feel I can offer a substantiated
opinion of my own on that subject. I also stressed that the
overwhelming majority of physicists accept the HBB theory. On the
other hand, I also pointed out that, however well the HBB theory
explains a multitude of observed data, there still are some
unexplained features of the universe, for example the discrepancy
between General Theory of Relativity and Quantum Theory, which has
forced the famous physicist, Stephen Hawking, one of the main
promoters of the HBB, to admit [11] that possibly there could
be no singularity after all at the beginning of the universe's
existence. I also pointed out that no scientific theory is
considered as the final word on a subject. A further development of
science may lead to a modification and in some cases to a complete
reversal of theories which today are almost universally accepted. The
history of science is replete with such unexpected reversals of
seemingly impervious theories. If Aviezer thinks otherwise, he is
out of touch with reality. Since, contrary to Aviezer, I did not
write that I reject HBB, his emotional diatribe against my alleged
position on that subject may be viewed as what a Russian maxim calls
"breaking through an open door."
One more part of my critique which
Aviezer deigned to address is the problem of the emergence of
proteins and nucleic acids. According to Aviezer's opinion
(which is not 100% correct in itself, as mentioned in one of the
comments to Aviezer's post, written by a chemist) proteins
cannot emerge in the absence of nucleic acids, and nucleic acids
could not emerge in the absence of proteins. Hence, to start the
cyclic process wherein proteins are produced with the help of nucleic
acids and the latter are produced with the help of proteins, via
a natural path would be impossible as long as no proteins and no
nucleic acids are yet present. Then the only possible explanation,
thinks Aviezer, is to assume a supernatural interference with the
situation. It is here that Aviezer offers his funny argument about
Nobel Prize. Aviezer asserts here that I allegedly claimed to know
how life emerged. Needless to say, I never suggested anything of the
sort. What I did suggest was the idea that a cyclic process could
somehow have started in a non-cyclic way, and I discussed several
possible way it could have happened. My example with runners circling
a stadium was just for illustration and in no way was meant to
suggest that it is equivalent to the emergence of proteins or nucleic
acids.
Finally Aviezer lists several
assertions in my review where, he thinks, I attributed to him
statements which he did not make in his book. In fact, in none of
the cases listed by Aviezer, did I pretend to provide direct
quotations from his book, but rather rendered in my own words notions
that seemed to follow from his narrative. I still believe that in all
three cases listed by Aviezer he has no reason to accuse me of
attributing to him something he did not have in mind. I understand
though, that because of Aviezer's not always clear style, some
confusion on my part was possible. If, therefore, Aviezer now
disowns those positions (as I interpreted them) which were the
subjects of the three statements in question, I can only greet this
with satisfaction: it would mean there is a hope he will realize his
errors and come to a more reasonable world outlook.
My review contains several sections
which Aviezer chose not to address. Why? His explanation is that he
just had no more patience for replying to all of my critical remarks
and, moreover, did not wish to test the patience of his audience. I
believe in scientific debates impatience has never been a
justification for avoiding replies to critique. Of course, Aviezer's
book and paper hardly can be referred to as "scientific."
They belong in apologetics thinly disguised by a scientific-like
veneer. Could it be that he simply could not come up with reasonable
counter-arguments regarding those parts of my critique he left
without a rebuttal?
In conclusion I'd like to discuss
certain points which may seem to be beyond the specifics of Professor
Aviezer's book, which, however, have some (admittedly
secondary) relevance to my debate with him. As mentioned above, in
one of the comments to Aviezer's reply he was reproached for
being too concerned with his credentials. In this regard I recall two
conferences dedicated to the "Torah and science" subject,
which I attended several years ago in Miami Beach, FL. On both
occasions Professor Aviezer was a member of a panel, sitting on a
podium, and also delivered talks which were in the same vein as his
book. He was introduced by the chairman as both an outstanding
physicist and a great authority on the "science versus
religion" subject. Hence, he seems to have very impressive
credentials. Isn't it impudence on my part to raise a hand on
such a formidable opponent? Reluctantly, I feel compelled to compare
my credentials with those of Aviezer.
First, I'd like to address
Aviezer's assertion that I have not received "any other
prize." In fact I have received a number of prizes and awards,
including one from the Royal Society of London (in 1978) for the
discovery and study of a hitherto unknown phenomenon for which I
coined the term "photodeposition" of semi-conductor films
on dielectric substrates. After a series of papers (written by me
and my doctoral students) describing the kinetics of photodeposition
and the properties of films thus obtained, appeared in several
scientific journals, three international conferences dedicated to the
photo-assisted deposition of various materials were held, and scores
of researchers from various countries reported on the studies in the
area which I originated. I also received a number of other prizes and
awards, both in the USSR and in the West. Perhaps Aviezer should have
been a little more cautious when denigrating an opponent with
unsubstantiated claims.
Aviezer is a professor emeritus of
physics at the Bar-Ilan university in Israel. I am also a professor
emeritus of physics (at the California State University). In the
seventies I was, for five years, a Full Professor (professor min
haminyan) at the Hebrew Unversity of Jerusalem (which is
considered the best university in Israel and each year appears on the
list of the 100 best universities in the world). Professor Aviezer
has published, according to information found on the internet, about
140 papers in peer-reviewed journals. I have to my credit nearly 300
papers in peer-reviewed journals, plus several scientific monographs.
One of them, originally published in the USSR, was translated into
English in 1970. (The translation was ordered by the National Bureau
of Standards of the USA and paid for by the National Science
Foundation.) In the past Professor Aviezer worked for the T. J.
Watson Research Center of the IBM in Yorktown Heights , NY. In the
seventies I had a two-year stint at the same research center as a
visiting scientist. I was invited to that center after the monograph
I mentioned above attracted the attention of IBM scientists, who
arranged for the invitation. Besides his research (reportedly in the
physics of solids) Professor Aviezer is very active in the "science
versus religion" debate. I also am interested in that debate
and have authored about 70 papers on that subject and also a book,
Unintelligent Design, which was reviewed more than 80 times in
various media. Some chapters of that book were translated into other
languages, including Russian, Byelorussian, Polish, and Bengali. I
have also published a number of articles regarding some problems of a
political and historical nature, which have appeared in five
languages. In one of these papers, published in the mid-seventies in
four languages, I predicted the collapse of the Soviet Union, and
when, some seventeen years later, the USSR indeed collapsed, it
happened in a way quite similar to the scenario offered in my
article. The only difference between my scenario and the actual event
was that I expected the collapse to happen some thirty years later,
while in reality it took only seventeen.
So, it seems that from the viewpoint of
credentials Aviezer and I are roughly in about the same category.
Of course, it is most likely that
Professor Aviezer will not be impressed by the above discussion and
will rather stick to his views. I wish him well and apologize if my
critique caused him some pain. I wish I could have praised his work,
but regrettably I couldn't and I can't.
I am thankful to Matt Young and Paul
Gross who have kindly read the initial draft of the above text and
made valuable comments.
REFERENCES
[1] N. Aviezer. In the Beginning.
Biblical Creation and Science. KTAV Publishing House, Hoboken
NJ, 1990.
[2] N. Aviezer. The Anthropic
Principle. Jewish Action. Spring 1999.
[3] M. Perakh. The End of the
Beginning, a review of Professor Aviezer's book (reference
[1]. www.talkreason.org/articles/aviezer.cfm, November 30, 1999. Updated November 2001.
[4] M. Perakh. Unintelligent
Design. Prometheus Books, Amherst, NY. 2003.
[5] N. Aviezer. Reply to Mark
Perakh. (torahmusings.com/2012/02/fossils-and-faith) Feb. 29, 2012).
[6] M. Perakh. Improbable
Probabilities. June 22, 1999.
www.talkreason.org/articles/probabilities.cfm. Updated September 2001, last update November 2006.
[7] P. Olofsson. Probability,
Statistics, and Stochastic Processes. John Wiley &Sons,
Hoboken, NJ, 2005.
[8] J. Rosenhouse. The Monty
Hall Problem. The Remarkable Story of Math's Most Contentious
Brain Teaser. Oxford Univ. Press USA, 2009.
[9] M. Perakh. The Anthropic
Principles - Reasonable and Unreasonable.
www.talkreason.org/articles/anthropic.cfm. Posted August 2000, updated July 2001. A slightly modified version
of that article was in 2004 printed in the Skeptical Inquirer
magazine.
[10] M. Ikeda and W. Jefferys. The
Anthropic Principle Does Not Support Supernaturalism.
www.talkreason.org/articles/super.cfm.
Posted January 2004.
[11] S. Hawking. A Brief History
of Time, Bantam Books, 1988.
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