[Paleopsych] Re: Ashafar experiment - need help
HowlBloom at aol.com
HowlBloom at aol.com
Thu Oct 14 04:52:56 UTC 2004
Here's a quick and possibly ignorant interpretation of the Afshar experiment.
Sometimes my mind thinks in English. Sometimes it thinks in French. When it
thinks in French it thinks in ways that it can't think in English. Language
has amazing properties--properties to constrict us and properties that set us
free.
Back to the Afshar experiment. We're asking a question based on metaphor.
Which metaphor do the characteristics of a photon fit--the metaphor of a tiny
crumb, a particle, or the metapor of a ripple in a pond, a wave.
As the centuries roll on the number of metaphors in our vocabulary increase.
And with new metaphors come new terms, new ways to use language to comprehend.
Descartes could not think of things in terms of software versus hardware.
There were no computers in his day.
We use computers all the time. Software versus hardware thinking comes to us
with ease. Our rapidly evolving technology has given us new metaphors and
new language--a new vocabulary.
Our problem is that we don't yet have a metaphor for something that "acts
like a particle", a crumb, when we use one sort of detection contraption and
"acts like a wave" of water when we use another detection device entirely.
So let's make our own metaphor. Let's call it a "wavicle". A wavicle is a
thing or a process (or both--as most things are). It is a thing or a process
that shows the characteristics of a wave when viewed with one detection gadget
and the characteristics of a particle when we switch to another gangle of
gadgetry.
Now let's shuffle our deck of metaphors and yank out that metaphorical wonder
called the elephant. If the hairs on the tip of the tail act like particles
and the trunk ripples like a wave, what does the elephant look like?
The elephant whose shape
we're seeking right now is the wavicle--or at least one wavicle, the photon.
There may well be other wavicles out there.
Is the invisible linkage between the scattershot bristles of the tail and the
woobling wavery of the trunk simply still invisible because we haven't
invented enough new detection devices with which to touch, test, and see
photons--wavicles-- in their full glory? Or is the body of the wavicle in another
dimension entirely?
There's an old Bloom theory about non-locality. It says that when you part a
stream of photons they still seem linked to each other because they ARE
linked in a fifth dimension. Here's the sort of thing I mean. Imagine that you are
of dragging a tuning fork sideways through Flatland. To the Flatlanders it
looks as if your tuning fork is just one straight line. If the Flatlanders put
an obstacle in the tuning fork's path, you, the tuning-fork dragger, can
twist the tuning fork around 90 degrees.
A tuning fork is shaped like an upside-down U. One arm of the tuning fork can
go around the obstacle to the left. Another can go around the obstacle to
the right.
To the Flatlanders, it looks as if the tuning fork has split in two. If the
branches continue to show the same characteristics, the Flatlanders might
wonder how faster-than-the-speed-of-light communication between the two occurs.
You wouldn't have to wonder. You'd see that the connection has never been
broken. The right and left branches of the tuning fork, the upside-down U, are
connected in a dimension the Flatlanders can't perceive.
(I wish I could show you this with a flash animation.)
I've just used a small barrage of metaphors on you: waves, particles,
elephants, Flatlanders, and tuning forks. I can use them easily because you know
their stories and their shapes. You know the tale of the five blind scientists
arguing about the shape of the elephant. And you know the story of Flatland.
They are part of your vocabulary.
Now we have a new story--the story of the mystery thing--the story of the
unknown what's-this that sometimes appears like a particle and sometimes appears
like a wave. It's simply a wavicle. Now we have to determine what a wavicle
is.
New vocabulary and new metaphor, new way of asking questions and of solving
them. New ways of seeing lead to new ways of being. And new ways of being
lead to new ways of seeing.
Perception is a collective thing that oscillates like a wave. Or does it
oscillate like a wavicle?
In a message dated 10/13/2004 3:23:32 AM Eastern Standard Time, Howl Bloom
writes:
Hopefully I can write more tomorrow. But here' the compilation I picked up
by following your leads. It's very intriguing:
Retrieved October 13, 2004, from the World Wide Web
http://www.philosophersnet.com/magazine/article.php?id=819 Sci-Phi 28: Is the Copenhagen
interpretation under threat? Click for a printer friendly version of this article Mathew
Iredale Since it was first developed, some 70 years ago, the “Copenhagen
interpretation” of quantum theory has been the cause of significant disagreement
amongst both physicists and philosophers. Its main architect, the physicist
Niels Bohr, summed up the typical response to it when he said “Anyone who is
not shocked by quantum theory has not understood it.” Einstein disliked it
because of its probabilistic implications, but also because he believed that it
was the task of science to provide us with knowledge of the world that is
independent of observers and their acts of observation. And this is something that
the Copenhagen interpretation expressly forbids. Bohr insisted that the only
way to make sense of the mathematics of quantum theory is to assume that
nothing really exists until it is measured. We cannot talk about an objective
reality independent of observers because our observations make a difference to what
we will see. Another of the architects of quantum theory, Erwin Schrödinger,
was unimpressed by this interpretation. He created a celebrated thought
experiment, now referred to as Schrödinger’s Cat, to make plain the absurdity
inherent in it. He imagined a closed room, or box, containing a live cat and a tiny
radioactive sample connected to a container of cyanide. The whole thing is
set up in such a way that there is a fifty-fifty chance that the radioactive
sample will trigger the release of the cyanide and kill the cat. Common sense
tells us that the cat inside the box is either dead or alive, depending upon
whether the radioactive trigger has fired. But according to the Copenhagen
interpretation, one cannot say this until an observer actually looks into the box
and sees that the cat is dead (or that it is alive). Until then, the cat is
taken to be both dead and alive at the same time. Clearly, this is an
extraordinary state of affairs and yet it has been part of scientific orthodoxy for the
last 80 years. But perhaps not for much longer, if the results of a
controversial experiment by the physicist Shahriar Afshar prove to be valid. One of the
strange features of the fundamental building blocks of reality is that under
some circumstance they behave as particles, whereas under other circumstances
they have clear wave-like properties. This is most clearly shown in the “
double-slit” experiment, in which electrons are fired at a thin metal plate with two
narrow slits in it. The electrons pass through one or other of the slits to
arrive at a phosphor coated screen, where they produce a flash of light that is
picked up by a detector. The experiment is carried out in three stages. In
stage one, only one of the slits is open, and the electrons form a pattern on
the screen similar to that which is seen when bullets are fired at a target.
There is a concentration of “hits” centred on one part of the screen which
gradually fades as one moves away from this centre. In the second stage of the
experiment the first slit is closed, the second slit is opened, and the electrons
form a pattern on the screen similar to that observed in stage one, but with
the concentration of “hits” in a different position on the screen,
corresponding to the different position of the slit on the metal plate. So far, so
good. Nothing out of the ordinary here. The fun begins when you open both slits in
the metal plate and fire electrons at the screen. If electrons always behaved
like particles (as they did in stages 1 and 2) you would expect to see a
combination of the results from stage 1 and stage 2. That is, the screen would
have two concentrated areas of “hits” corresponding to the electrons passing
through the two slits, with the concentration of hits gradually fading away from
each area of concentration. But this is not what you observe. What you observe
is a classic interference pattern, such as that obtained when two water waves
meet. That is, you observe a collection of peaks and troughs of “hits” on
the screen, inconsistent with the firing of simple particles through the two
slits. The electrons appear to start out as particles when they are fired from
the electron gun, and to end up as particles when they hit the phosphor screen,
but to transform themselves into some sort of wave as they travel between the
two. From such experiments it might appear as if electrons can be both waves
and particles, but Bohr believed that it is more likely that they are
something else entirely, something so novel that our ordinary, everyday experiences do
not equip us to describe or understand them. [hb: a failure of metaphor—we
need more tools in our kit of concepts.] Nor can our experimental equipment
adequately capture them. When measured, a quantum entity will behave either like
a particle or a wave. Bohr argued that it was the way in which you set up your
experiment that determined which sort of behaviour you would observe and that
you would never see both at the same time in one experiment. He called this
the “principle of complementarity”. Einstein objected to this, but was not
able to refute it experimentally. It now appears as if Shahriar Afshar has done
so. Afshar’s experiment, recently described in New Scientist, is a variation
of the “double-slit”experiment. Laser light falls on two pinholes in an opaque
screen. On the far side of the screen is a lens that takes the light coming
through each of the pinholes (another opaque screen stops all other light
hitting the lens) and refocuses the spreading beams onto a mirror that reflects
each onto a separate photon detector. In this way, Afshar gets a record of the
rate at which photons are coming through each pinhole. According to the
principle of complementarity, that means that there should be no evidence of an
interference pattern. But according to Afshar, there is, as he has specifically
designed the experiment to test for its presence. As he says, “This flies in the
face of complementarity…Something everyone believed and nobody questioned for
80 years appears to be wrong.” When he was invited to repeat the experiment at
Harvard University earlier this year he got the same results and has now
submitted his work for peer-reviewed publication. This is, of course, the acid
test of his research and will determine whether his ideas are accepted or
rejected by the wider scientific community, although a number of physicists have
already voiced their support. Afshar is confident that his research will be
accepted and that for many this will come as a relief. “Many physicists have found
Bohr’s ideas either vague or intolerable, but until now nobody has been able
to show in an experiment that complementarity fails,” says Afshar. However,
before anyone starts celebrating the apparent victory of common sense over
quantum weirdness, it should be noted that, for example, we are still left with the
situation in which a particle is a wave and a wave a particle. One part of
the Gordian knot that is quantum theory may be slowly unravelling, but much of
the rest remains as tightly bound as at any time in the last 80 years.
Suggested reading The Quantum Universe , Tony Hey & Patrick Walters (Cambridge
University Press) ‘Quantum Rebel‘, Marcus Chown, New Scientist 2457, 24 July 2004
Comment on this article here. Join our Mailing List Enter your email address
into the box on your right and click on the button labelled 'Subscribe'.*
*Note: we do not give out email addresses to third parties. Email Address
TPM Online is The Philosophers' Magazine on the net It is edited by Dr
Jeremy Stangroom © The Philosophers' Magazine Contact Us
________
Retrieved October 13, 2004, from the World Wide Web
http://www.analogsf.com/0410/altview2.shtml
Analog Science Fiction
The Alternate View
John G. Cramer
A FAREWELL TO COPENHAGEN?
This column is about experimental tests of the various interpretations of
quantum mechanics. The question at issue is whether we can perform experiments
that can show whether there is an "observer-created reality" as suggested by the
Copenhagen Interpretation, or a peacock’s tail of rapidly branching alternate
universes, as suggested by the Many-Worlds Interpretation, or
forward-backward in time handshakes, as suggested by the Transactional Interpretation? Until
recently, I would have said that this was an impossible task, but a new
experiment has changed my view, and I now believe that the Copenhagen and
Many-Worlds Interpretations (at least as they are usually presented) have been falsified
by experiment.
The physical theory of quantum mechanics describes the behavior of matter and
energy at the smallest distances. It has been verified by more than 70 years
of experiments, and it is trusted by working physicists and regularly used in
the fields of atomic, nuclear, and particle physics. However, quantum
mechanics is burdened by a dismaying array of alternative and mutually contradictory
ways of interpreting its mathematical formalism. These include the orthodox
Copenhagen Interpretation, the currently fashionable Many Worlds Interpretation,
my own Transactional Interpretation, and a number of others.
Many (including me) have declared, with almost the certainty of a
mathematical theorem, that it is impossible to distinguish between quantum
interpretations with experimental tests. Reason: all interpretations describe the same
mathematical formalism, and it is the formalism that makes the experimentally
testable predictions. As it turns out, while this "theorem" is not wrong, it does
contain a significant loophole. If an interpretation is not completely
consistent with the mathematical formalism, it can be tested and indeed falsified. As
we will see, that appears to be the situation with the Copenhagen and
Many-Worlds Interpretations, among many others, while my own Transactional
Interpretation easily survives the experimental test.
The experiment that appears to falsify these venerable and widely trusted
interpretations of quantum mechanics is the Afshar Experiment. It is a new
quantum test, just performed last year, which demonstrates the presence of complete
interference in an unambiguous "which-way" measurement of the passage of light
photons through a pair of pinholes. But before describing the Afshar
Experiment, let us take a backward look at the Copenhagen Interpretation and Neils Bohr
’s famous Principle of Complementarity.
Quantum mechanics was first formulated independently by Erwin Schrödinger and
Werner Heisenberg in the mid-1920s. Physicists usually have a mental picture
of the underlying mechanisms within theory they are formulating, but
Heisenberg had no such picture of behavior at the atomic level. With amazing intuition
and remarkable good luck, he managed to invent a matrix-based mathematical
structure that agreed with and predicted the data from most atomic physics
measurements. On the other hand, Schrödinger did start from a definite picture in
constructing his quantum wave mechanics. Making an analogy with massless
electromagnetic waves, he constructed a similar wave equation describing particles
(e.g., electrons) with a rest mass. However, it soon was demonstrated by Bohr
and Heisenberg that while Schrödinger’s mathematics was valid, his underlying
mass-wave picture was unworkable, and he was forced to abandon it. The net
result was that the new quantum mechanics was left as a theory with no underlying
picture or mechanism. Moreover, its mathematics was saying some quite bizarre
things about how matter and energy behaved at the atomic level, and there
seemed no way of explaining this behavior.
In the Autumn of 1926, while Heisenberg was a lecturer Bohr’s Institute in
Copenhagen, the two men walked the streets of the ancient city almost every day,
arguing, gesturing, and sketching pictures and equations on random scraps of
paper, as they struggled to come to grips with the puzzles and paradoxes that
the quantum formalism presented. How could an object behave as both a particle
and a wave? How could its wave description spread out in all directions, then
"collapse" to a location where it was detected like a bubble that had been
pricked. Did an electron smoothly make the transition from one atomic orbit to
another or did it undergo a "quantum jump", abruptly disappearing from one
orbit and appearing in the other? How could the occurrence of seemingly random
quantum events be predicted?
The Copenhagen autumn phased into winter, and no solution was found. In
February on 1927, Bohr went away on a skiing vacation, and while he was gone,
Heisenberg discovered a key piece to the puzzle concealed in the mathematics of
Schrödinger’s wave mechanics. When one tried to "localize" the position of an
electron by specifying its location more and more precisely, the mathematics
required that the momentum (mass times velocity) of the electron must become less
localized and more uncertain. One had to add more and more wave components
with different momentum values to make the position peak sharper. Knowledge of
position and momentum were like the two ends of a seesaw: lowering one raised
the other. The product of the uncertainties in position and momentum could not
be reduced below a lower limit, which was Planck’s constant. The mathematics
required that any attempt to do so must fail. This became the essence of the
Heisenberg Uncertainty Principle, first published in early 1927.
When Bohr returned to Copenhagen, he was presented with the new idea. At
first he was skeptical, because of problems with Heisenberg’s "gamma ray
microscope" example used in the paper, but he finally convinced himself that, example
or not, the basic idea was correct. The Uncertainty Principle brought Bohr to a
new insight into quantum behavior. Position and momentum were
"complementary", in the sense that precise knowledge of one excluded knowledge of the other,
yet they were jointly essential for a complete description of quantum events.
Bohr extended the idea of complementary variables to energy and time and to
particle and wave behavior. One must choose either the particle mode, with
localized positions, trajectories, and energy quanta, or the wave mode, with
spreading wave functions, delocalization and interference. The Uncertainty Principle
allowed both descriptions within the same mathematical framework because each
excluded the other. Bohr’s Complementarity and Heisenberg’s Uncertainty,
along with the statistical interpretation of Schrödinger’s wave functions and the
view of the wave function as observer knowledge were all interconnected to
form the new Copenhagen Interpretation.
In Bohr’s words: ". . . we are presented with a choice of either tracing the
path of the particle, or observing interference effects . . . we have to do
with a typical example of how the complementary phenomena appear under mutually
exclusive experimental arrangements." In the context of a two-slit welcher weg
(which-way) experiment, the Principle of Complementarity dictates "the
observation of an interference pattern and the acquisition of which-way information
are mutually exclusive." By 1927 the Copenhagen Interpretation was the big
news in physics and the subject of well-attended lectures by Bohr, Born, and
Heisenberg. In the next decade, through many more lectures and demonstrations of
the effectiveness of the ideas and despite the objections of Albert Einstein,
it was canonized as the Standard Interpretation of quantum mechanics, and it
has held this somewhat shaky position ever since.
The Afshar experiment was first performed last year by Shariar S. Afshar and
repeated while he was a Visiting Scientist at Harvard. In a very subtle way it
directly tests the Copenhagen assertion that the observation of an
interference pattern and the acquisition of particle path which-way information are
mutually exclusive. The experiment consists of two pinholes in an opaque sheet
illuminated by a laser. The light passing through the pinholes forms an
interference pattern, a zebra-stripe set of maxima and zeroes of light intensity that
can be recorded by a digital camera. The precise locations of the interference
minimum positions, the places where the light intensity goes to zero, are
carefully measured and recorded.
Behind the plane where the interference pattern forms, Afshar places a lens
that forms an image of each pinhole at a second plane. A light flash observed
at image #1 on this plane indicates unambiguously that a photon of light has
passed through pinhole #1, and a flash at image #2 similarly indicates that the
photon has passed through pinhole #2. Observation of the photon flashes
therefore provides particle path which-way information, as described by Bohr.
According to the Copenhagen Interpretation, in this situation all wave-mode
interference effects must be excluded.
However, at this point, Afshar introduces a new element to the experiment. He
places one or more wires at the previously measured positions of the
interference minima. In one such setup, if the wire plane is uniformly illuminated,
the wires absorb about 6% of the light. Then Afshar measures the difference in
the light received at the pinhole images with and without the wires in place.
We are led by the Copenhagen Interpretation to expect that the positions of
the interference minima should have no particular significance, and that the
wires should intercept 6% of the light they do for uniform illumination.
Similarly, the usual form of the Many Worlds Interpretation of quantum mechanics
leads us to expect 6% interception and no interference, since a photon detected at
image #1 is in one universe while the same photon detected at image #2 is in
another universe, and since the two "worlds" are distinguished by different
physical outcomes, they should not interfere.
However, what Afshar observes is that the amount of light intercepted by the
wires is very small, consistent with 0% interception. There are still
locations of zero intensity and the wave interference pattern is still present in the
which-way measurement. Wires are placed at the zero-intensity locations of the
interference minima intercept no light. Thus, it appears that both the
Copenhagen Interpretation and the Many-Worlds Interpretation have been falsified by
experiment.
Does this mean that the theory of quantum mechanics has also been falsified?
No indeed! The quantum formalism has no problem in predicting the Afshar
result. A simple quantum mechanical calculation using the standard formalism shows
that the wires should intercept only a very small fraction of the light. The
problem encountered by the Copenhagen and Many-Worlds Interpretations is that
the Afshar Experiment has identified a situation in which these popular
interpretations of quantum mechanics are inconsistent with the quantum formalism
itself.
What about the Transactional Interpretation, which describes each quantum
process as a handshake between a normal "offer" wave (_) and a back-in-time
advanced "confirmation" wave (_*)? The offer waves from the laser pass through both
pinholes and cancel at the positions of the zeroes in the interference
pattern. Therefore, no transactions can form at these locations, and the wires can
intercept only a very small amount of light. Thus, the Transactional
interpretation is completely consistent with the results of the Afshar Experiment and
with the quantum formalism.
Does this mean that the Copenhagen and Many Worlds Interpretations, having
been falsified by experiment, must be abandoned? Does it mean that the physics
community must turn to an interpretation like the Transactional Interpretation
that is consistent with the Afshar results? Perhaps. I predict that a new
generation of "Quantum Lawyers" will begin to populate the physics literature with
arguments challenging what "is" is and claming that the wounded
interpretations never said that interference should be completely absent in a quantum
which-way measurement. And most practicing physicists who learned the Copenhagen
Interpretation at the knee of an old and beloved professor will not abandon that
mode of thinking, even if it is found to be inconsistent with the formalism
and with experiment.
But nevertheless, the rules of the game have changed. There is a way of
distinguishing between interpretations of quantum mechanics. It will take some time
for the dust to settle, but I am confident that when it does we will have
interpretations of quantum mechanics that are on a sounder footing than the ones
presently embraced by most of the physics community.
AV Columns On-line: Electronic reprints of over 120 "The Alternate View"
columns by John G. Cramer, previously published in Analog, are available on-line
at: http://www.npl.washington.edu/av. Electronic preprints of papers listed
below are available at: http://arxiv.org.
Reference:
The Copenhagen Interpretation:
Neils Bohr, Nature 121, 580 (1928).
Neils Bohr, in: Albert Einstein: Philosopher-Scientist, P. A. Schlipp, Ed.
(Library of Living Philosophers, Evanston, Illinois, 1949).
The Transactional Interpretation:
John G. Cramer, Reviews of Modern Physics 58, 647 (1986);
http://www.npl.washington.edu/TI
The Afshar Experiment
Shariar S. Afshar, (submitted to Physical Review Letters, July, 2004); See
also http://users.rowan.edu/~afshar
In a message dated 10/12/2004 3:00:02 AM Eastern Standard Time,
kurakin.pavel at gmail.com writes:
Howard -- happy to hear You!
Oh yes, You are right. Right is "Asfar", and here is what Google finds:
http://users.rowan.edu/~afshar/
http://www.kathryncramer.com/wblog/archives/000674.html
http://www.sciencefriday.com/pages/2004/Jul/hour2_073004.html
http://www.analogsf.com/0410/altview2.shtml
Not only this, but in fact this covers web-available information. No
original papers, just discussions and\or advertisment to buy the
hard-copy magazine. Here's the problem.
Here's why I am so much excited. From web-discussions I've picked up
that Prof. John Cramer is highly optimist about Ashfar results, since
this experimant confirms (in some way! - in which exactly I can't find
out) his transactional interpretation of quantum mechanics (TIQM), in
preference to Copenhagen.
And John Cramer's TIQM is one step from my (and Yours!) idea of "talks
of particles". In short, a _talk_ (what we two You and me believe in)
implies questions and answers, i.e. -- two-directional flow of
information, two-sided waves. TIQM just introduces those 2-sided
waves.
And then, my "hidden time" idea, as I believe, makes such waves fully
lawfull in physical sence.
On Tue, 12 Oct 2004 02:35:45 EDT, howlbloom at aol.com <howlbloom at aol.com> wrote:
>
>
>
> Pavel-- Are you sure the spelling is correct? I couldn't find it in the NY
> Public library computer system, in Questia, or in Google. Google will
> usually return results on anything in this cosmos that has a name. But on
> Ashafar it comes up blank. Onward--Howard
>
> In a message dated 10/11/2004 3:00:55 AM Eastern Standard Time,
> kurakin.pavel at gmail.com writes:
> May I ask Your help to find out what Ashafar experiment is. I have
> found out that it is a kind of 2-slits experiment, but in some way it
> falsifies Copenhagen interpretation of QM, which is widely discussed
> in web-forums.
>
>
> ----------
> Howard Bloom
> Author of The Lucifer Principle: A Scientific Expedition Into the Forces of
> History and Global Brain: The Evolution of Mass Mind From The Big Bang to
> the 21st Century
> Visiting Scholar-Graduate Psychology Department, New York University; Core
> Faculty Member, The Graduate Institute
> www.howardbloom.net
> www.bigbangtango.net
> Founder: International Paleopsychology Project; founding board member: Epic
> of Evolution Society; founding board member, The Darwin Project; founder:
> The Big Bang Tango Media Lab; member: New York Academy of Sciences, American
> Association for the Advancement of Science, American Psychological Society,
> Academy of Political Science, Human Behavior and Evolution Society,
> International Society for Human Ethology; advisory board member:
> Youthactivism.org; executive editor -- New Paradigm book series.
> For information on The International Paleopsychology Project, see:
> www.paleopsych.org
> for two chapters from
> The Lucifer Principle: A Scientific Expedition Into the Forces of History,
> see www.howardbloom.net/lucifer
> For information on Global Brain: The Evolution of Mass Mind from the Big
> Bang to the 21st Century, see www.howardbloom.net
>
----------
Howard Bloom
Author of The Lucifer Principle: A Scientific Expedition Into the Forces of
History and Global Brain: The Evolution of Mass Mind From The Big Bang to the
21st Century
Visiting Scholar-Graduate Psychology Department, New York University; Core
Faculty Member, The Graduate Institute
www.howardbloom.net
www.bigbangtango.net
Founder: International Paleopsychology Project; founding board member: Epic
of Evolution Society; founding board member, The Darwin Project; founder: The
Big Bang Tango Media Lab; member: New York Academy of Sciences, American
Association for the Advancement of Science, American Psychological Society, Academy
of Political Science, Human Behavior and Evolution Society, International
Society for Human Ethology; advisory board member: Youthactivism.org; executive
editor -- New Paradigm book series.
For information on The International Paleopsychology Project, see:
www.paleopsych.org
for two chapters from
The Lucifer Principle: A Scientific Expedition Into the Forces of History,
see www.howardbloom.net/lucifer
For information on Global Brain: The Evolution of Mass Mind from the Big Bang
to the 21st Century, see www.howardbloom.net
----------
Howard Bloom
Author of The Lucifer Principle: A Scientific Expedition Into the Forces of
History and Global Brain: The Evolution of Mass Mind From The Big Bang to the
21st Century
Visiting Scholar-Graduate Psychology Department, New York University; Core
Faculty Member, The Graduate Institute
www.howardbloom.net
www.bigbangtango.net
Founder: International Paleopsychology Project; founding board member: Epic
of Evolution Society; founding board member, The Darwin Project; founder: The
Big Bang Tango Media Lab; member: New York Academy of Sciences, American
Association for the Advancement of Science, American Psychological Society, Academy
of Political Science, Human Behavior and Evolution Society, International
Society for Human Ethology; advisory board member: Youthactivism.org; executive
editor -- New Paradigm book series.
For information on The International Paleopsychology Project, see:
www.paleopsych.org
for two chapters from
The Lucifer Principle: A Scientific Expedition Into the Forces of History,
see www.howardbloom.net/lucifer
For information on Global Brain: The Evolution of Mass Mind from the Big Bang
to the 21st Century, see www.howardbloom.net
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.extropy.org/pipermail/paleopsych/attachments/20041014/9b13ff32/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/jpeg
Size: 47834 bytes
Desc: not available
URL: <http://lists.extropy.org/pipermail/paleopsych/attachments/20041014/9b13ff32/attachment.jpe>
More information about the paleopsych
mailing list