by J. Deardorff, B. Haisch, B.
Maccabee and H.E. Puthoff
JBIS, Vol. 58, pp. 43-50
2005 from UFOSkeptic
Website
It has
recently been argued that anthropic reasoning applied to inflation theory
reinforces the prediction that we should find ourselves part of a large,
galaxy-sized civilization, thus strengthening Fermi’s paradox concerning
“Where are they?"
Furthermore,
superstring and M-brane theory allow for the possibility of parallel
universes, some of which in principle could be habitable. In addition,
discussion of such exotic transport concepts as “traversable wormholes”
now appears in the rigorous physics literature.
As a result,
the “We are alone” solution to Fermi’s paradox, based on the
constraints of earlier 20th century viewpoints, appears today to be
inconsistent with new developments in our best current physics and
astrophysics theories. Therefore we reexamine and reevaluate the present
assumption that extraterrestrials or their probes are not in the vicinity
of Earth, and argue instead that some evidence of their presence might be
found in certain high-quality UFO reports.
This study
follows up on previous arguments that,
(1)
interstellar travel for advanced civilizations is not a priori ruled out
by physical principles and therefore may be practicable
(2) such
advanced civilizations may value the search for knowledge from
uncontaminated species more than direct, interspecies communication,
thereby accounting for apparent covertness regarding their
presence
1. Introduction
The ever
recurring question of why Earth has seemingly not been visited by
extraterrestrials (ETs) has received considerable discussion
under the topic of ‘Fermi’s paradox’. The problem originated as a
quip by Enrico Fermi to colleagues in Los Alamos over lunch one day
in 1950.
Whether one
assumes the existence of only one other civilization or of many alien
civilizations in our Milky Way galaxy, and whether one assumes
colonization involving interstellar travel at near-light speed or far
below, diffusion modeling predicts colonization or at least visitation of
all habitable planets in the galaxy on timescales of tens of millions of
years, far less than the approximate 13 x 109 year age of the galaxy
itself.
Thus the
paradox: Where are they [1]?
Theoretical
possibilities unknown to Fermi make the paradox even stronger today. One
can now rationally conjecture about prospects afforded by adjacent M-brane
universes [2]. Indeed, if the multidimensions underlying
superstring and M-brane theory are correct, there could be inhabited
universes separated from our own by minute, orthogonal distances. Also,
anthropic reasoning has recently been applied to inflation theory,
arriving once again at the conclusion that we should find ourselves within
an enormously larger galactic civilization [3].
While the ‘We
are alone’ solution to Fermi’s paradox was once a seemingly valid one,
this answer is now incompatible with the infinite universe and random
self-sampling assumption consistent with inflation theory. We thus find
ourselves in the curious position that current cosmological theory
predicts that we should be experiencing extraterrestrial
visitation. At the same time, current physics and astrophysics suggest
that such visitation may not be as impossible as had been thought.
2. Recent
Scientific Advances
In recent
astronomical discoveries, over 100 exoplanets have been catalogued, with detection
sensitivity now increased to the point where, in one instance, a
Jupiter-sized planet was deduced to be in a Jupiter-like orbit around a
Sol-like star [4]. In the field of exobiology, much recent activity
suggests that some of the building blocks for life may originate in space
as well as be transported by meteorites [5-6].
The possibility
of widespread panspermia has received new
impetus [7-8]. These findings and stud-ies make plausible the hypothesis
that there is intelligent life elsewhere in the universe. This is, of
course, the fundamental assumption made by the proponents of SETI, the
Search for Extraterrestrial Intelligence using microwave or optical means
of detection.
The
extraterrestrial hypothesis (ETH), that intelligent life
from ‘elsewhere’ in the universe could be visiting Earth, has become less
implausible through suggestions that the velocity-of-light constraint—
‘they can’t get here from there’—is not as restricting as had been assumed
previously.
This
restriction has its origin in the special theory of relativity, which we
do not question. However, within the context of general relativity
(GR) there are three approaches which may permit legitimately
bypassing this limit, given sufficiently advanced (perhaps by millions of
years!) knowledge of physics and technology.
One
approach popularized by Thorne and Sagan concerns the
possibility of wormholes, or cosmic subways, a form of shortcut through
the space-time metric [9]. Using the standard GR as a basis, certain
mathematical requirements for traversable worm-holes have been derived and
published in the scientific literature and it appears that there is the
possibility of engineering a wormhole metric, at least in principle [10].
A second
more recent approach published in the GR literature has been dubbed the
‘Alcubierre Warp Drive’ [11-12]. Unlike the speed of light limit through
space, there is no limit to the speed at which space itself might stretch.
Faster than light (FTL) relative motion is part of inflation
theory, and presumably the universe beyond the Hubble distance is receding
from us faster than c.
It was shown
that a spaceship contained in a volume of Minkowski space could in
principle make use of FTL expansion of space-time behind and a similar
contraction in front, with the inconvenience of time dilation and untoward
accelerations being overcome. A related approach involves constructing a
‘Krasnikov tube’ [13] to connect spatially remote locales. Of course
so-called exotic matter would be required for either case.
If GR
itself were to be reinterpreted in terms of a polarisable vacuum as first
proposed by Dicke [14], this would open the possibility of a
different type of metric engineering in which the dielectric properties of
the vacuum might be altered in such a way as to raise the local
propagation velocity of light. In effect one would be creating a local
index of refraction of less than unity [15].
Finally,
there is the conjectured possibility of making use of the additional
dimensionalities of M-brane and superstring theory to transfer into
adjacent universes where the speed of light limit may be quite different
and reentering our universe at the desired location. This is by far the
most speculative possibility.
Clearly
when it comes to engineering warp drive or wormhole solutions, seemingly
insurmountable obstacles emerge, such as unattainable energy requirements
[16] or the need for exotic matter [17]. Thus, if success is to be
achieved, it must rest on some yet unforeseen breakthrough about which we
can only speculate, such as a technology to cohere otherwise random vacuum
fluctuations [18].
Nonetheless,
the possibility of reduced-time interstellar travel by advanced
extraterrestrial (ET) civilizations is not, as naive
consideration might hold, fundamentally ruled out by presently known
physical principles. ET knowledge of the physical universe may comprise
new principles which allow some form of FTL travel. This possibility is to
be taken seriously, since the average age of suitable stars within the
‘galactic habitable zone’, in which the Earth also resides, is found to be
about 109 years older than the sun [19] suggesting the possibility of
civilizations extremely advanced beyond our own.
There are
further reasons why the ‘We are alone’ solution to Fermi’s paradox
should perhaps be set aside in favor of the ETH. A
previously preferred solution, that biogenesis is an exceedingly rare
event in conjunction with both panspermia and interstellar travel being
inoperative [1], is now scarcely tenable in light of the cosmological
considerations already discussed.
The ETH
appears to be the most viable remaining solution, where ‘ET’ is taken in a
general non-Earthly sense that could include extra-dimensional realms, as
in M-brane and superstring theory. Given the highly advanced ET science
and technology to be expected in considerably older civilizations, coupled
with the many observational reports since WWII of highly advanced
technology seemingly operating at will within Earth’s skies, it is only
logical to search for evidence of ET visitations in at least a fraction of
the ongoing, unexplainable re-ports popularly referred to as ‘UFO
sightings.’
Reluctance to
do so could result in our failure to realize that observations of
‘genuine’ ET visitations have been occurring. This approach, which
we follow here, explores the likelihood that ‘we actually do belong to a
large civilization but are unaware of that fact’ [3].
3. U.S. Air
Force Response(1947-1969)
Reports of
unknown objects in the skies, appearing as some sort of flying craft and
exhibiting extraordinary maneuvers, first became known to the general
public in 1947. The first publicized sighting occurred on June 24 of that
year, after which there were many hundreds of sightings during the
following months. The phenomenon has been continuing ever since [20-24].
At first the
U.S. Air Force collected the sighting reports for analysis in its
operation Project Sign (1948-1949).
This was succeeded by Project Grudge (1949-1952)
and then Project Blue Book (1952-1969)
[20,25]. Some 20% of Project Blue Book’s sightings from 1953-1965 were
left unexplained, if their ‘insuf-ficient data’ category is included [22].
The Battelle
Memorial Institute (BMI; Columbus, Ohio) discovered, in their
study of 3,201 reports from 1947 through 1952, that the percentage of
unknowns (unexplainable sightings) increased with increasing quality of
the sighting information and reliability of the observers [21].
A surprisingly
high percentage, 30%, of the civilian sightings, and an even more
surprising 38%, of the military sightings rated as excellent in quality
were listed as unknown. On the other hand, only about 15% of the civilian
and 20% of the military sightings rated as poor were unknown. The increase
in the percentage of unknowns with increasing quality of the report is an
unexpected result if sightings were all explainable as mistakes (failure
to correctly identify the sighted phenomenon) by either the observer(s) or
the scientists who analyzed the sightings. In this collection of 3,201
sightings none were listed as hoaxes and only 1.5% were listed as caused
by psychological effects.
This result
discovered during the several year long BMI study refutes the claim, made
in the Condon Report [22], that
UFO reports are from ‘less well informed individuals,’ who are ‘not
necessarily reliable.’ It is worthy of note that Condon had access to the
results of the BMI study but there is no reference to it in the Condon
Report.
Project
Blue Book culminated in 1969 with the government sponsored Condon
Report [22]. In the opening section of the Report its director concluded
that, after years of investigation, the U.S. Air Force had found nothing
truly new—nothing that supported claims of new physics or the
ETH—and that continued investigation probably would not find
anything truly new in the future. The Report recommended that the Air
Force end its investigation project, which it did in late 1969.
4. The Condon Report (1968)
In the late
1960’s, the U.S. Air Force issued a con-tract to the University of
Colorado to carry out a scientific study of evidence concerning the UFO
phenomenon. The director of the project was Prof. Edward U. Condon,
a distinguished and influential physicist who made no secret of his
opinion even at the outset that no substantive evidence for
extraterrestrial visitation was liable to result.
The study was
relatively brief (2 years) and had a notably low budget (app. $500K) for a
serious scientific study. When the Condon Report was released in 1968, the
American scientific community accepted its apparently negative conclusion
concerning evidence for extraterrestrial visitation in a generally
uncritical way, and to some extent even an enthusiastic way since it
offered an end to a troublesome situation.
An endorsement
of the Report by the National Academy of Sciences took place
following an unusually rapid review and the Air Force quickly used the
Report as a justification to terminate any further public involvement with
the topic.
The
negative conclusion of the Report is more apparent than real however,
since there is a substantial discrepancy between the conclusion in the “Summary of the Study” written
by Condon single-handedly, and the conclusion one could reasonably draw
from the evidence presented in the main body of the Report.
Such a
dichotomy was possible be-cause the study was a project for which the
director, Condon, had sole authority; it was not the work of a committee
whose members would have to reach some consensus conclusion. An analysis of the Condon Report by
Sturrock [26] details the many disagreements between Condon’s
dismissive summary and the actual data.
Given the
thousand-page length of the Report, one can safely assume that very few in
the scientific community would have devoted the time necessary to read the
entire document. The impact of the Report was thus largely due to Condon’s
leveraging his prestigious scientific reputation into an acceptance of his
own personal views as representing the apparent outcome of a scientific
investigation. Indeed, as Sturrock documents, Condon actually took no
part in the investigations and indicated the conclusion he intended to
draw well before the data were properly examined, hardly a scientific
approach.
The portion
of the Condon Report that contains its sighting analyses does not
support the “Summary of the Study” written by Condon [26]. Many of the
events presented within its Case Studies section do fall into the
‘unidentified’ category of UFOs, for which the Report’s definition was, in
essence:
‘A puzzling
stimulus for a report of something seen in the sky or landed on the
earth that could not be identified as having an ordinary natural
origin.’
In a detailed
review of this Report, however, it was noted that,
‘The sheer
bulk of the report, much of it “scientific padding”, cannot conceal from
anyone who studies it closely that it examines only a tiny fraction of
the really puzzling UFO reports, and that its scientific argumentation
is often unsatisfactory. Of roughly ninety cases that it specifically
confronts, more than thirty are conceded to be unexplained’ [27].
Four of the
cases, reanalyzed and reported in detail at the 1969 AAAS Symposium,
disclosed how unscientific the Condon Report’s treatment of them had been;
the reanalyzes have since gone unrefuted. Hence we cannot agree with the
Condon Report’s assertion that the phenomenon pro-vides no new subjects
for science to explore, given that many sightings were left unexplained.
Furthermore, in
many of the cases that the Report claimed to have identified, that goal
was achieved merely through assuming that the witnesses had seen
some-thing differing in detail from what they had reported. Also, a
committee of the American Institute of Aeronautics and Astronautics
in 1971 found ‘it difficult to ignore the small residue of well-documented
but un-explainable cases that form the hard core of the UFO
controversy’[28].
Clearly, the
Condon Report was left in an unsatisfactory state [20,24-26,29-30].
The primary
conclusion of the Condon panel side-stepped the main issue, the failure to
explain every sighting, by saying:
‘The evidence
presented on Unidentified Flying Objects shows no indication that
these phenomena constitute a direct physical threat to national
security’ [22].
This is not
inconsistent, however, with some fraction of unexplained reports
representing actual ET visitations.
5.
Re-Evaluation of the Phenomenon Needed
5.1
Sightings Since the Condon Report
The
self-inconsistency of the Condon Report, along with the strengthening of
Fermi’s paradox through recent developments in cosmology, physics,
astronomy and astrobiology, are but two reasons to reevaluate the UFO
phenomenon. Another reason is that remarkable sightings did not cease
with the publication of the Condon Report in 1969. Many detailed
sightings since then have become available for examination.
Scientists
should not feel reluctant to study these inasmuch as the Report’s
executive summary stated that ‘any scientist with adequate training and
credentials who does come up with a clearly defined, specific proposal
for study [of UFO reports] should be supported.’
One
example of sightings worth studying are those that occurred on December
31, 1978 off the north-east coast of South Island, New Zealand. These
involved several channels of information recorded on tape and film
during the sightings, correlated visual air- and ground-radar detections
and light phenomena recorded on color movie film as well as reports by
the eight witnesses who were involved.
Analysis of
the recorded data and of the witness testimony indicates that unknown
objects emitting bright light were detected on radar, filmed and
apparently moved in response to the motions of the airplane carrying the
witnesses. The sightings have defied all mundane explanations [31-32].
Some
investigations of unexplainable sightings have been sponsored by
governments outside the U.S. Since 1977 the French Space Agency has
carried out an official investigation of UFO reports with its project
GEPAN, later called SEPRA. In the Belgium sighting wave of 1989-90,
civilian and military officials cooperated in sharing eyewitness, radar
and video-image data of triangular-shaped craft.
5.2
Withheld Information Now Available
The
Condon investigators did not have full access to the information and
analysis compiled previously by the U.S. Air Force Office of
Intelligence (AFOIN) or to all the information collected by
Project Blue Book. Much of this information has been disclosed in the
years since 1968. The information release has come about on five fronts.
First, the U.S. Air Force released the complete files of Project Blue
Book in 1975.
This release
included the previously unavailable files of the Air Force Office of
Special Investigation (AFOSI). Second, the U.S. Freedom of
Information Act, which went into effect in the mid 1970s, resulted in
the release of relevant information from other agencies (Federal Bureau
of Investigation: FBI, in 1977; Central Intelligence Agency:
CIA, in 1978; etc.), though often in a censored form [23-24].
A third
new source of information is the collection of previously withheld
reports and analyses carried out by the AFOIN in the late 1940s and
early 1950s. This information has been released in the last 20 years as
a result of standard declassification requirements for old documents.
It shows that
Air Force intelligence privately concluded that as many as 5% of the
sightings were unexplainable even though they were apparently accurate
reports made by credible observers, thus contradicting the public
statements of the Air Force that all sightings could be explained.
The documents
provide an explanation as to why Air Force intelligence told the FBI in
August and again in October, 1952, that some top Air Force officials
were seriously considering the ‘interplanetary’ explanation [33].
Fourth,
governments of countries other than the United States, over the last 25
years, have released relevant information collected by their armed
services and police. Not only has the French government, through GEPAN and SEPRA, released sighting
documents but also England’s Ministry of Defense recently released a
number of documents.
The
governments of Spain and Canada also released documents in the 1970s and
1980s. Moreover, some governments besides that of France have official
investigative groups on this topic. In 1997, in response to civilian and
military sightings over the previous years, the Chilean Air Force formed
the Committee for the Study of Anomalous Phenomena (acronym,
CEFAA in Spanish) directed by a former Air Force general and
headquartered in the Technical School of Aeronautics in Santiago.
One of us
(Maccabee) was invited to Chile in 1999 to lecture at a symposium
sponsored by the CEFAA and to discuss the sightings. The Peruvian Air
Force set up a similar group in 2001. Brazil and Uruguay also have
comparable investigative groups.
A fifth
new source of information not available or utilized by the Condon group
consists of the many witnesses to events in the 1940-1960 decades who
had worked for the government or the military and after reaching
retirement age, have come forward to divulge their first-hand knowledge
[34]. They have felt it was more important for the citizens to know what
has been taking place than to continue to obey instructions to maintain
silence about it.
A reluctance
to report UFO events arose because of a curtain of ridicule which, since
the 1950s, had settled over the subject. It was induced in part by the
CIA’s 1953 Robertson panel that recommended a debunking programme
against the reality of the phenomenon [20,22-23].
The
debunking is most often implemented by an authority figure asserting, at
his own volition and without interviewing the witnesses, that whatever
was observed and reported as extraordinary was instead the
misidentification of something mundane. This is demeaning to sincere,
credible witnesses.
The major
news media quickly picked up on sarcastic phrases like ‘little green
men’ and ‘UFO buffs’, then gradually weaned themselves away from the
topic—reporters, editors and corporate owners fear ridicule, whether
just or unjust, as much as do scientists and politicians. The refusal of
the U.S. Air Force in the 1950s and 1960s to release sighting data it
had collected only added to the problem, since evidence collected by the
government was not available to support the witnesses [33].
The first
director of the CIA assessed the situation in 1960 as follows:
‘Behind the
scenes, high-ranking Air Force officers are soberly concerned about
UFOs. But, through official secrecy and ridicule, many citizens
are led to believe the unknown flying objects are nonsense… to hide
the facts, the Air Force has silenced its personnel’.
[35]
The Condon
Report also added to the problem, since it demonstrated that men of
science could simply allege that witnesses are mistaken or dishonest and
they would be believed by most of their colleagues even though they had
no evidence to back up their allegations. This in turn led to greater
reluctance on the part of witnesses to come forward. As a result,
‘the most
credible UFO witnesses are often those most reluctant to come forward
with a report of the event they have witnessed’ [27].
This ridicule
factor has pre-vented many serious investigators from even attempting to
report their findings within the journals preferred by most scientists.
Therefore, one of the recommendations made by the moderator of a 1997
panel of scientists is that journal editors should change their policy
of refusing to even seriously consider publishing articles related to
the UFO phenomenon, so that this difficulty may be alleviated
[36].
6. Inferring an ET Strategy
If one
allows that at least some unexplainable sightings may be manifestations of
extraterrestrial intelligence, then there is yet another reason for
reevaluation: a growing recognition over the past two decades that a large
part of the behavior manifested can be viewed as being quite rational. The
topic of ET behavior has received considerable discussion in connection
with SETI in the past three decades.
SETI has
proceeded on the assumption that Fermi’s paradox is to be solved
through continued and enhanced searching of the sky for electro-magnetic
signals indicative of ET communications [37]. Several possible reasons for
lack of success to date have been proposed [1,37-38].
Since the
1970s advocates of a covert ET presence in our vicinity have also
been advancing their hypotheses or scenarios. They reject as improbable
the assumption that space-faring ETs must be dominated by the most evil
and aggressive of their kind— an assumption whose consequence would be
that we should not be existing as a freely developing civilization within
a fully colonized and/or explored galaxy.
Contact
optimists instead presume that many advanced ET groups are at least as
ethical as we are, while still attending to their own safety and security.
The ET motivation for space travel could be to increase their knowledge
through exploration of space rather than to colonize and seek domination
[39]. Thus hypotheses have been set forth regarding why such ETs would be
aware of our presence but not yet have contacted us overtly. Among these
are the zoo, nursery and quarantine or embargo hypotheses [1,38,40-42].
Most of these
posit that the ETs involved have frequently scouted us out semi-covertly
and have concluded that we are either not yet mature enough for open
contact, or not prepared for it, since any abrupt, overt contact could
cause societal chaos and governmental downfalls. Also postulated is that
ET interference with our society would prematurely bring an end to our
civilization's continued development if it occurred before our knowledge
has progressed to the point that we could understand where the aliens
could have originated and how great their head start over us could be
[39].
A serious
inconsistency in this reasoning, how-ever, is that maintenance of total ET
covertness to-wards Earth and the solar system would still lead to
societal chaos whenever the covertness or embargo was eventually lifted,
unless the ETs carried out a programme of gradual disclosure—a ‘leaky’
embargo [1,43].
Although the
zoo or embargo hypothesis may be unverifiable, the
leaky-embargo hypothesis may be verifiable if the UFO evidence is taken
into ac-count. Much of this evidence appears to constitute just such a
leak in the embargo: a grass-roots educational programme in the form of
the phenomenon, which has been in operation since 1947, if not be-fore.
Many
sightings have been of a nature to attract attention to their craft and
let isolated groups of witnesses know that its occupants are aware of us
[24,44]. A key category of such cases involves re-ports wherein persons
within a traveling vehicle frantically witness an object pacing them even
though their automobile or aircraft makes turns that rule out the sighting
of an astronomical or other ordinary object as any explanation.
Similarly, in a
number of the aircraft cases the unknown object, which was either pacing
the aircraft or presenting itself to it, was detected on radar as well as
visually [23-25,27]. The object’s extraordinary appearance,
maneuverability and oft-times coincidental interference with the vehicle’s
electrical system additionally rule out mundane explanations [23-25].
Although
individual, localized and usually brief sightings may have provided
sufficient evidence to be convincing to the observers and sighting
analysts, the fact is that, since the widely-reported sightings began in
1947, no event has persisted in a prominent place a sufficient number of
hours at a time, or demonstrated its abilities to enough wit-nesses at a
time, for the news media to congregate and publicize it to the world. Nor
have they left quite enough evidence behind to be totally convincing to
very many scientists [25]. We suspect that this chary behavior may be no
accident.
To put it
another way, from the viewpoint of investigators studying such phenomena,
individual close-encounter and other sightings can be very intrusive and
overt. However, from the viewpoint of the scientific community and society
as a whole, this is not the case, because of the relative rarity in time
and space of convincing sightings and be-cause of the limited numbers of
witnesses in most instances.
The inference
is that, by not providing sufficient evidence to make their reality
totally obvious to scientists and society in general, the ETs are
following a strategy or programme that avoids inflicting catastrophic
shock to society as a whole, which any overt contact could cause,
while pre-paring us for eventual open contact. This could say
something about their level of ethics.
Proposing a
certain level of ET ethics is not new; it was suggested in 1981 that
advanced ETs may abide by a Codex Galactica that would require them
to treat emerging civilizations delicately [1,45]. Such a standard
of behavior is consistent with reality of the UFO phenomenon and the fact
that not in the past 56 years, nor in past millennia, have we been
colonized, conquered or exterminated, nor has society been traumatized by
any ETs or by their sometimes postulated robotic probes [1,41].
It is also
consistent with the failure of investigative panels to find that UFOs
constitute any direct threat to national security. On the other hand, it
appears all too evident that ETs have not intervened in world affairs in
any benevolent manner that would have forestalled human war-fare, famine
and disease. In fact, ample cases exist wherein the witnesses, when too
close, were injured or harmed.
Other cases
exist, however, in which a witness was healed of some injury or medical
condition [46]. All this suggests that ET interactions with humans are
based on a neutrally benevolent ethical level overall.
7. Conclusions
Despite the
UFO phenomenon having continued now for over two generations, the
huge technological head start of the presumed ETs would still come as a
great shock to many scientists as well as citizenry, as the Brookings Report
indicated [47].
It could be so
great as to seriously challenge our consensual reality, a not
insignificant danger. The implication that we would be powerless relative
to their presumed capabilities and evolutionary advantage may be most
un-welcome, with it being no surprise that science would have difficulty
coming to terms with the situation [48].
Nevertheless,
the reality of the phenomenon and of our having long since been discovered
by advanced ETs now may be more probable than that Fermi’s paradox is to
be resolved through either the non-existence of advanced ETs or their
inability to explore or colonies the galaxy. Hence open scientific
research on the subject is needed with special attention paid to high
quality UFO reports exhibiting apparent indications that ET intelligence
and strategy are involved.
8.
Acknowledgments
We thank P.
Sturrock of Stanford University and T. Roe of the
National Aviation Reporting Center on Anomalous Phenomena (NARCAP)
for suggested improvements.
References
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