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The Spirit Ends When The Brain Dies

Posted: 10/ 5/2011 11:13 am

In my last post I commented about the link between the brain and the mind. That post received so much interest and so many comments from all perspectives that I thought it would be useful to explore the topic more systematically. Nobody should be mistaken about the cultural importance of the topic. The link between the mind and the brain is not merely a medical story. Its implications reach into almost all aspects of religion and spirituality including the belief in God, ghosts, angels, devils, and life after death.

When most of us think about the key conflicts between science and religion, we tend to think about Darwin's theory of evolution published in 1859, or Galileo's persecution by the Catholic Church in the 17th century. These famous clashes between science and religion are resolvable. Every sensible modern religion accepts the fact that the Earth orbits the Sun. Liberal religions are gradually accepting the scientific fact of biological evolution.

One disconnect between religion and science, however, is much older, much more profound, and may be much harder to bridge. It dates back at least to Hippocrates in the fifth century BC. At that time there was no formal science as it is recognized today. Hippocrates was nonetheless an acute medical observer and noticed that people with brain damage tended to lose some of their mental abilities. A passage attributed to him summarizes his view elegantly:

"Men ought to know that from the brain, and from the brain only, arise our pleasures, joys, laughter and jests, as well as our sorrows, pains, griefs and tears. Through it, in particular, we think, see, hear, and distinguish the ugly from the beautiful, the bad from the good, the pleasant from the unpleasant..."

Hippocrates evidently understood the central conflict between observation and most spiritual beliefs. The belief in a spirit world, a world of consciousness that exists independently of physical substance, that survives the death of the body, that comprises ghosts and angels and deities, is incompatible with the observation that damage to the physical brain systematically takes away chunks of the mind. The medical facts suggest that mind, though it definitely exists, is something created by the brain and that it dies piece-by-piece as the brain dies.

About a century later Aristotle famously disagreed with Hippocrates, placing the mind in the human heart. Aristotle listed his reasons, many of which sound vaguely plausible given the analogical and somewhat mystical thinking of the time. How did Aristotle go so wrong in his medical analysis? He was a theoretician. Hippocrates, who worked in a hospital, saw the effects of brain damage every day and grounded his theory in observation. Nobody who spends appreciable time with brain-damaged patients can avoid the obvious conclusion. The brain is the source of the mind.

Another famous view of the brain/mind problem was outlined by Descartes two thousand years later, in the 17th century. In Descartes' view the mind was an ethereal substance, a fluid, that was stored in a receptacle in the brain. When he dissected the human brain he noticed that almost every structure came in pairs, one on each side. The human soul was obviously a single entity and therefore it could not be stored in a double structure. In the end he found a small single object at the center of the brain, the pineal body, and deduced that it was the house of the soul. The pineal body is now known to be a gland that produces melatonin and has nothing whatever to do with a soul.

Descartes' idea, aside from being wrong in the particulars, has a deeper problem. There is no part of the brain that, when damaged, takes away the Cartesian soul. Instead damage to different structures takes away different chunks of the mind. The ability to formulate a sentence? Lost in damage to Broca's area. The ability to understand language? Lost in damage to Wernicke's area. The ability to see, imagine, or comprehend color? Lost in damage to specific regions of the visual system. The ability to think about the space around the body? Lost in damage to another set of brain areas. The ability to intuit the feelings and intentions of others? Impaired after a stroke to a specific network of brain regions. And so on. The mind is a collective and bits of it die when parts of the machinery are mucked up. Even awareness itself, as I wrote about last time, can be splintered apart and compromised by brain damage.

The effect of brain damage is certainly not the only pertinent evidence. Some of the more interesting evidence comes from the direct electrical stimulation of the brain. A little more than a century ago scientists tried applying minute sparks of electricity to surface of the brain, stimulating the circuitry. The technique was improved and elaborated and is now one of the main methods for probing the brain's circuitry. For example, before removing a tumor from a person's brain, a surgeon will expose the brain while the person is awake and under local anesthetic. The surgeon will then study the effect of electrical stimulation, mapping out the function of this and that brain area, to avoid surgically removing any area necessary for language. Some of the most colorful and memorable experiments of this type were done by Penfield in the early 20th century. He found, as have many others since, that electrically tickling a specific spot in the circuitry has a specific and predictable effect on the mind. Whether seeing, hearing, feeling hunger, feeling rage, remembering a scene from childhood, making a coordinated gesture, even feeling as though you've intentionally chosen to make the gesture, these many bits and components of mind can be turned on and off by altering the activity of neurons.

The evidence is now overwhelming that every aspect of the mind is produced by the brain.

The realization that the brain produces the mind is similar in some ways to the theory of evolution before Charles Darwin got to it. Prior to Darwin, the theory of evolution was much discussed and the fossil record certainly supported it, but nobody could point to a plausible mechanism. How exactly did one species evolve over time into many new species? Darwin proposed a mechanism that fit the evidence: natural selection. Survival of the fittest. With the discovery of this simple mechanism, the science of biology was revolutionized.

The idea that the mind depends on the action of the brain is amply supported by the scientific evidence. But nobody knows how a brain produces the inner experience -- the feeling of consciousness. What is the mechanism? That is the question of our time. Many theories have been proposed, including one of my own, and only time and data will tell who is right.

I draw two personal lessons from the neuroscience of mind.

First, far from dismissing mind, or spirit, or soul as nonsense, I see these quantities as far more precious precisely because they are vulnerable and finite. In a sense I've become more spiritual as my scientific understanding deepens and I realize that spirit is a passing conjunction of information.

Second, the neuroscience of the mind gives me a wonderful opportunity to work on a scientific problem that is truly meaningful. About 25 years ago Francis Crick, famous for his role in understanding DNA, posed a question. Is it possible for brain science to address consciousness, a topic traditionally studied by philosophers and theologians? The answer is a definite yes. Many neuroscientists including myself have joined that effort.

 
 
 
In my last post I commented about the link between the brain and the mind. That post received so much interest and so many comments from all perspectives that I thought it would be useful to explore t...
In my last post I commented about the link between the brain and the mind. That post received so much interest and so many comments from all perspectives that I thought it would be useful to explore t...
 
 
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03:55 PM on 11/18/2011
Disturbed by the shadows of “God”?

Still playing god-proxies’ games?
Theo-religio-philosophical conundrums that do not exist?
Nietzsche calls them ’shadows of God’ -- Gay Science sections 108-127.

Philosophical knots inherited from dead xian culture;
Imported from teleology (Purpose) and cosmology (Design).
Copernicus (unintentionally) killed Aristotle and Plato;
Darwin killed both Purpose and Design in biology.
(God-proxies hate creativity).

Free will? Unfree will? There is no ‘will’, free or unfree.
“The primitive sign of wanting is trying to get.” -- Wittgenstein
Minds and bodies? There are no ‘minds’; there are no ‘bodies’.
“A nothing would be as good as a something about which
nothing could be said” -- Wittgenstein.

Only persons using language, creating cultures, exist.
There are no monads.

Epicurus has a 'swerve' -- QM indeterminacy is not analogous.
Uncaused events explain nothing.
Universal deterministic causation would not preclude novel events -- Spinoza.
Universal mathematical necessity does not preclude creativity.

Very ancient notions of dead ‘body’ and ‘last warm breath = psyche/anima/soul’;
Wishful thinking about post-mortem existence tarted up as a reward for good behavior.
‘Intention’ as a precursor to ‘willing’ is morality as social control by god-proxies.
“When will these shadows of God cease to trouble us?” -- Nietzsche

the anti_supernaturalist
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01:28 AM on 10/16/2011
"To be authentic is to exercize one's voice in the public commons of this blog with integrity and with clear articulati­on and good argument. I try and in most endeavors I make a good accounting­."

Not as good as you may assume. While I have no doubt that you are an exceptionally skilled communicator in the public *scientific* commons, you are not just preaching to the choir here.
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01:21 AM on 10/16/2011
"I only post to what I read. What do you expect? I don't look you up and see everything that you post before posting. That hardly is worth my time and is not how a blog works."

I obviously don't expect you to look anyone up. But when you take the time and effort to *respond* to a particular post in the first place, you can reasonably be expected to have taken the time and effort to *read* it. You seem to be admitting, without blushing, that you only read *parts* of the individual posts that you respond to. That would explain most of the resulting confusion and frustration that others here have been forced to ignore.

Among other things, this is a forum for honest debate and the exchange of ideas -- provided you have the confidence and inclination to use it as such. Now, if you're more comfortable using it as a sniping point or smorgasbord table, then have at it. But you are not the final arbiter of how a blog works or is supposed to work. It *can be* anything, but it *is* what you choose it to be.
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01:06 AM on 10/16/2011
"Your quote about "the spirit ends when the brain dies" calling it a "theory" is incorrect. It isn't a theory."

Finally, and I mean FINALLY, you've contributed a concrete example for which I can thank you. You are, of course, correct; I used the word "theory" incorrectly in this instance. But you assume it's because I don't know a theory from a speculation, or a conclusion, or a thesis, or a belief, or a fact, or a hypothesis, or a principle, or an assumption, etc. The quote in question is the title of the article! Is this not more likely an example of poor word choice?

You seem to think that an advanced degree is required to grasp the meanings of general terms. Yeah, yeah -- scientific process, methodology, peer review, global institutions -- we get it. You rubber stamp it on most of your posts. Some of us wake up in cold sweats at 3:00am screaming the words! We get it, OK?
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12:45 AM on 10/16/2011
To make this thread "more apparent," as you put it, I'll take it back to the top again, Lucy.

"Again, your inconsiste­nt post shows that you don't know what science is. Clearly, like Aldous Huxley wrote "some people process and some people don't"."

We could market a drinking game based upon the number of times you accuse me, and others, of not knowing what science is. And with each of your posts, it becomes more and more apparent that no one but a fellow scientist could pass your litmus test. You suggest, and admittedly not without some justification, that the only way to really know something is to experience it. Consequently, if you're not actually part of the scientific community, accredited and degreed, then you know nothing of science and are unfit to comment on anything related to it -- which is practically everything.

Yes, most of us do not have a scientific background. But you deny us even a layman's understanding of science -- to say nothing of the additional, albeit comparatively minimal, exposure to it that many of us have had in our academic careers. You pronounce us ignorant of science simply because we don't sacrifice ourselves at its altar, as you have. And we must endure your scorn.

Oh, and thank you for presenting such a shining example of Huxley's hallowed objectivity. A more accurate observation, such as "Some people process differently than others," wouldn't have been as provocative, would it?
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07:10 PM on 10/13/2011
In other news, the sky is blue, humans need water to live, and things fall to the ground when you drop them.
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Oblongato
My micro-bio defines me.
04:06 PM on 10/12/2011
If Huffington Post posts any more such excellent, clear and logical articles, I will start to run out of fingers on my right hand.
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StephenJK
All your consciousness are belong to us
03:23 AM on 10/12/2011
LOL @ a neuroscientist (and his materialistic viewpoint) attempting to address the soul and consciousness. Please, do us a favor and stick to what you're familiar with; physicality. We don't need you mucking up the most complicated subject known to mankind; consciousness. It's already complicated enough. We don't need your Occam's Razor shaving it down to nothing.
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White Raven
Eyeballs are tasty
04:50 AM on 10/12/2011
The problem with people who try to use Occam's Razor is that they don't know what they're doing with it. They saw it in a movie where some actor pretending to be a scientist talked about it in incomplete terms, and do not realize that it's only a general guideline when formulating hypotheses. It's not a rule, nor is it a law, nor is it deterministic to conclusions, nor is it by any means infallible. Occam's Razor was used to argue against DNA carrying hereditary information, against Einstein's Theory of Relativity, and against plate tectonics. Anyone trying to use Occam's Razor to shoot down an argument is basically little better than an intellectual luddite.
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Oblongato
My micro-bio defines me.
01:49 AM on 10/16/2011
It would be interesting to hear you back up your points by addressing what was written.

In particular, I was puzzled by this comment of yours:

"It's already complicate­d enough. We don't need your Occam's Razor shaving it down to nothing."

Here you imply that bringing neuroscience into the discussion of the soul and consciousness will make an already complicated subject even more complicated. How? By shaving it down to nothing. Please explain.
10:29 PM on 10/11/2011
Actually the Spirit lives when the Brain/Body/Flesh Dies.
The Soul is either given Eternal Life (Heaven) or Destroyed (Hell)
11:02 PM on 10/11/2011
And you have what evidence in support of this assertion? (and please, don't bother to quote as evidence, that tired tome of ignorant, bronze-age, nomadic goat-herders, the bible, unless you'll accept the Iliad and the Odessey as historically accurate).
12:44 PM on 10/12/2011
It's just so. Scientist will find evidence soon.
Why? Science will advance to its peek.

Not sure if they will release the information.
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mose joseph workman
I don't need no stinkin' badges
07:22 PM on 10/11/2011
mister, you are wrong. dead wrong. there is a river of consciousness that flows through this universe and millions of times each day it is poured into the bodies of sentient beings in the process of taking birth. at death, this consciousness leaves the body and re-enters the stream, on its way toward perfection (enlightenment). the only reason man takes birth is to progress along the spiritual path; spirit can make no progress outside the body. thus, the necessity of transmigration and reincarnation of the spirit. man has always believed that the human is made up of body, mind and spirit. but on closer examination, we find that spirit can be further divided into Self, Ego and Spirit. these entities are not a function of brain or mind; they are separate and apart and can be located and identified as such. your research is stuck in low gear, and your findings are elementary. those of us that have accessed what i describe know you to be wrong. dead wrong. but good luck with your version.
11:08 PM on 10/11/2011
Have you ever noticed that the arguments of "spiritual" or "religious" people are chock full of grand, but otherwise unsupported, vacuous assertions but laughably short on anything that resembles objectivity, rationality or empirical evidence?

"a river of consciousness....poured into sentient beings....along the spiritual path...blah, blah, blah, blah"

If you haven't got something meaningful or sensible to say, keep it to yourself. No one cares about your meaningless, personal revelations.
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mose joseph workman
I don't need no stinkin' badges
12:30 AM on 10/12/2011
hey, ben: you won't find your soul with your head up your ass. but maybe you'll find something you can understand.
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StephenJK
All your consciousness are belong to us
03:12 AM on 10/12/2011
Have you ever noticed the intellectual laziness of the Occam's Razor Materialistic crowd? Yeah, I know, it's really underwhelming.
researcher
researcher
05:33 PM on 10/11/2011
"However, how was this suppossed entity that created the universe created?"

this is a question that fails to understand the very term infinite. ie no beginnings no endings no boundaries and interesting; infinite cannot be defined. for to define inifinite is to limit infinite.

"and even if matter exploded from nothingnes­s"

nothing can come from nothing. zero times zero is always zero. always.

the western mind confuses the term the eastern religions use: emptinesss. emptiness is not nothingness. emptiness is pure awareness, ie no flow of thoughts. ie the mind with an "emptiness" of thoughts.

there is awareness, no thoughts, and there is consciousness ie flow of thoughts. evolution of the soul is about greater and greater awareness. awareness is primary ie first cause.

"Science is reverse engineerin­g...studyi­ng "creation"­, the design of another".

interesting statement. this might qualify as a nice analogy for materialism. except infinite does not design it manifests and expresses and we look upon the manifestation as creation. we look upon that expression as life. we are expressions of that that is. kind of scary sometimes to think we are expressions of the infinite that that is. :-)

"It took a preexistin­g intelligen­ce to design and build this computer so that I could come on here and give you a hard time about your silliness" my kind of humor. :o)
01:49 PM on 10/11/2011
Scientist have yet to discover and understand a basic truth that there is a human spirit in every human brain (DNA) placed there by Almighty God (Job 32:8). The difference between the human mind and the animal brain is that there is a human spirit within the human brain that gives the ability of free thought, creativity and memory. The spirit is not physical but the brain is physical.The brain houses the spirit, it dosen't create it. The human spirit controls the brain functions and imparts the power of intellect to the human physical brain. The spirit cannot see, smell, feel, hear or taste. The brain operates through these senses. The human spirit cannot of itself think. The physical brain thinks. Few indeed do not know that animal brains have almost the same physical form, shape and design as the human brain yet the output of the human brain is indescribely greater. That is the means by which God has instilled, making possible for the human spirit to record every single experience of life and at death return to God. It has no self sustaining life inherent within itself, but God has the power to give it life. It is not the soul that returns to God but the spirit (Eccl 12:7). Many confuse the meaning of the word "soul" with the human spirit. According to scriptural interpretations, the word soul means a living creature. It is composed of physical matter and it can return to the earth.
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catsanon
Humans... Such silly creatures.
05:44 PM on 10/11/2011
"The difference between the human mind and the animal brain is that there is a human spirit within the human brain that gives the ability of free thought, creativity and memory. "

That statement sounds as if you've had minimal first-hand and long-term experience with animals. Or that you view animals with a human-ego-biased mind.
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06:06 PM on 10/11/2011
"The difference between the human mind and the animal brain is that there is a human spirit within the human brain that gives the ability of free thought, creativity and memory."

You don't exactly know what you're talking about. I've seen my pets, "free think" and I'm sure I've seen birds and such build very creative nest and "remembered" where to fly back to, so their young could eat.
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White Raven
Eyeballs are tasty
11:05 AM on 10/11/2011
Are you sure that the brain is not an interferometer tapping into a yet-to-be-described energy field one might name a 'soul', and that the movement of information back and forth as it processes within the computer that is the brain manifests an id that we call a 'mind'?

From reported cases of reincarnation, of which there are many of various qualities of documentation, it seems that conscious memories are an artifact of the mind, but not necessarily of the soul itself. That spark that realizes it exists and has a self-identity carries a deeper and more profound but immediately inaccessible memory that we can only be tricked into accessing sometimes. It appears that when the brain dies the mind dies with it, but there is yet something that moves on and sometimes returns in a new life, with a new brain, cultivating a new mind.

Defining the 'mind' is not defining the 'soul'. One is not equivalent to the other.
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Mr Anonymous
Mumpsimus, I am not entertained!
12:45 PM on 10/11/2011
There are many cases of reported reincarnation? I've heard that also. Apparently George Washington's, Napoleon's, and Abraham Lincoln's souls are kind of easy, because everyone has had them.
11:21 PM on 10/11/2011
Sorry Albino Crow, you're just dead wrong. There is no compelling evidence for reincarnation whatsoever. Please feel free to submit whatever you think you might have, but you'll only embarrass yourself.
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White Raven
Eyeballs are tasty
11:40 PM on 10/11/2011
Not being my professional focus, I don't really have evidence to submit to you and don't really care that much to. But if you were actually curious to question whether there might actually be such evidence you could go look for it. I thought about it and came across some cases that pretty much convinced me.

If on the other hand you're comfortable with your beliefs then by all means, proceed with them in peace. I don't need you to conform to what I think.
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Binea
Only a fool denies she is a fool, I am no fool
11:57 PM on 10/10/2011
I don't remember a time I didn't exist. what does that mean ?
08:41 AM on 10/11/2011
to whom?
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Binea
Only a fool denies she is a fool, I am no fool
09:53 AM on 10/11/2011
to me ?..unless of course you are imagining me,and it only matters to you :)

anyway..why is it that I can't remember a time I didn't exist ? I've heard nasty rumors that at one time I wasn't here,but,there is no real proof of that in my memory .So why should I accept their assertions that there is or was a "past" that I was not a part of
11:23 PM on 10/11/2011
Oh, I dunno. Perhaps that, prior to that time, your nervous system had not yet developed to the ability to retain memories, yet?
researcher
researcher
04:47 PM on 10/10/2011
“The non-questioning group-think taught in churches, compared to the nurturing of autonomous critical thinking taught at most universities is not even comparable.”

Teaching at three universities I saw this group think and herd effect up front and personal. That word nurturing in this quote taught at universities gave me a smile. Pure naiveté.

Example: every business school in America teaches this idea of leadership is pay for performance in spite of its destructive elements to organizations and even to a nation’s future unfoldment.

Who do you think these universities keep? Those that challenge the existing dept paradigms? Not.

I left university life to become a consultant and got to travel the world and all of America. This gives one an interesting perspective on the human mind and its cherished beliefs and paradigms.

Religion and politics and yes universities and even scientists and yes we consultants are classic examples of this group think and herd effect.

This idea that science is not subject to these human cherished beliefs and herd effect and that the scientific method is conducted as pure science is very naïve to say the least.
10:17 PM on 10/10/2011
True. Science is not immune to the herd instinct. But I think it is also true that science itself is a self-correcting process. That's NOT because scientists are better smarter thinkers or more intellectually honest than religionists or any such hooey. It just due to what the scientific method IS; the rational deconstruction of physical reality. It is self-correcting because what is not logical and rational and consistent with the greater body of rational deconstruction will be gradually weeded out and replace with something better. It's a process. It's what scientists do. They can make a name for themselves by pointing out the errors of the past.

The process of religion, on the other hand, is something entirely different. It is about the entirely irrational subjective experience of being human inside the mechanism. It is about the heart, the emotion, the compulsion that moves us and animates us, and for which the real reasons are opaque and unavailable to science or to us for the foreseeable future. It is about the meaning of the life intentionality which exists only inside the mechanism, the source of life's meaning and morality.

Certainly science and religion can disagree, for the way to reconcile our experience with the underlying physical reality from which it emerges is not obvious. It has been debated for eons. Still science and religion are dealing with two different worlds and two different ways of knowing. They are not competing directly in any way.
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Binea
Only a fool denies she is a fool, I am no fool
11:46 PM on 10/10/2011
that is not what I see..I see many who claim to be "smart" tell me I'm irrational to believe in "God" when in fact it is their disbelief in "God" that is irrational..they can't really back up their assertion that there is no God.
But, there is plenty of reason to believe there is a "God"
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Binea
Only a fool denies she is a fool, I am no fool
03:15 PM on 10/11/2011
btw the brain is simply a computer for the soul to use in order to experience this particular reality in the physical world..and no
I don't know what the heck a soul is..I just know I have one..and it isn't created by my dna or brain
11:42 PM on 10/15/2011
Did you finish your PhD and post doctorate work? If you didn't finish your PhD work and go on to post doctorate work, you know little of what you speak. People who practice with rigor in their profession are people with PhDs and post doctorate work that goes on for decades (in the sciences). Obviously someone or some people displeased you. Graduate work is about being criticized and also being critical. It is meant to develop better and better critical thinking skills. And that is only the beginning of the profession. You need to get grants (win them), do the projects, publish, go through peer review (another very critical time perios) while continuing to do work on projects and publish again and again.

Many professors or lead researchers do consulting for other academic groups and most common, for private companies. In my area of profession, they often sit on Scientific Advisory Boards of companies to advise on the science and the future directions.

Most of these professors made a living off of challenging paradigms. It takes a long time of doing the work, good work, and building great teams of people.
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Saijanai
Micro bio? We don't need no stinkin' micro bio...
12:06 AM on 10/16/2011
Well, he WAS referring to economists, after all... Seriously, economists are the last bastion of numerology in mathematics, I sometimes think.