Showing posts with label Evolutionary Psychology. Show all posts
Showing posts with label Evolutionary Psychology. Show all posts

Monday, March 10, 2014

E.O. Wilson and The New Enlightenment: A Call to Understanding

by Gary Berg-Cross

Biologist Edward O. Wilson’s new book is called ‘The Social Conquest of Earth.’  It’s largely provides a biological perspective on 3 grand philo-cultural questions (famous questions, inscribed by Paul Gauguin in his giant Tahitian painting of 1897):


    ·     “Where do we come from?
  •      What are we?
  •      Where are we going?” 

 Unlike traditional philosophy or religion Wilson wants to incrementally advance on these from scientific understanding and theory.  He speaks in terms of the relatively rare, eusocial nature of humans and how this might have develop as part of pre-adaption. (Eu-Social means the highest level of organization of animal sociality, and is defined by 3 characteristics: cooperative brood care (including brood care of offspring from other individuals), overlapping generations within a colony of adults, and a division of labor into reproductive and non-reproductive groups).
 While it takes a while to make a scientific case Wilson argues for this approach as better than what we are handed by religion approaches.  It’s of no real help at all  he argues aside from making us feel like we know:
          “mythmaking could never discover the origin and meaning of humanity”
Contemporary philosophy  also comes up with a backhand irrelevant, having as Wilson argues
 “long ago abandoned the foundational questions about human existence.”
Well maybe and maybe at Harvard, but there are relevant, contemporary folks in philosophy I think.

I largely agree that the most likely approach to answering the 2 above foundational questions is to follow the scientific method as applied by the proper and emerging disciplines.   So we have Biology, Psychology, Anthropology, Archaeology and Sociology along with newer disciplines like neuroscience, epigenetics and evolutionary biology.  It’s a wonderful matrix of expanding understanding and especially nice when a master of one or two of these spends the time to synthesize a view understandable to non-experts.  Others in this senior synthesis of ideas worth reading and listening to are Jared Diamond whose last 3 or 4 books are enlightened warning that touches on our eroding environment in an historical context. They are wake up calls such as we have heard too from Richard Dawkins, of course, whose latest book An Appetite for Wonder: The Making of a Scientist  is autobiographical.

Wilson draws on all these sources to explore the development of human society and some objective self-awareness needed to understand our collective selves. The path has bounced from ancient art, primitive religion, the founding of philosophy, and finally an integrated science perspective. As a Biologist Wilson sees a tipping point in these various views of human nature and such with Charles Darwin's 19th century theory of evolution by natural selection. Together with other sciences this theory can be applied to understand human behavior and deal with some age old controversies.
Wilson outlines the broad human story and fills in some details to illustrate our new understanding.  Wilson does this, for example, spinning a more complex story than a simple genetic basis for shared individual- and group-level selection factors.  Both selfish and group favoring factors exist. As a result there is intense inter-group competition along with unstable group composition that results in:
 "an unavoidable and perpetual war ... between honor, virtue, and duty ... and           selfishness, cowardice, and hypocrisy..." 
A payoff is the later section of the book called “A New Enlightenment.” In a sequence of chapters he covers the topics of language (pre-adapted cognition evolved into the ability to create abstractions, and later to use arbitrary symbols for communication, thus leading to the evolution of language)., culture, morality ("The naturalistic understanding of morality does not lead to absolute precepts and sure judgments, but instead warns against basing them blindly on religious and ideological dogmas," p. 252)., religion and art. These provide a much different and nuanced view to approach an answer to the earlier question - “What are we?”,
His warning about the tribal aspects of religion are a meme that one hopes is widely heard. Organized religion, Wilson argues, is a simple expression of an evolution favored tribalism. So the "illogic" of religious belief is not a weakness in traditional human cultures, since it serves a social role of binding a group's members together to the exclusion of outsiders.  You may get to be part of a group by abandoning your differences and converting to the group’s core beliefs. In pre-scientific days creation- genesis stories & myths employed by the early Big religions are all explainable as cultural relics. Wilson does a back hand refutation of "phantasmagoric elements" as the result of hallucinogenic drugs.  This natural explanation, he argues, is a much more plausible as the basis for things like John's “visions” recorded in the Book of Revelation than the idea that god intervention actually happened. The same goes for nomads wandering in the desert.
“.. you can see this especially in the difficulty of harmonizing different religions. We ought to recognize that religious strife is not the consequence of differences among people. It's about conflicts between creation stories. We have bizarre creation myths and each is characterized by assuring believers that theirs is the correct story, and that therefore they are superior in every sense to people who belong to other religions. This feeds into our tribalistic tendencies to form groups, occupy territories and react fiercely to any intrusion or threat to ourselves, our tribe and our special creation story. Such intense instincts could arise in evolution only by group selection—tribe competing against tribe. For me, the peculiar qualities of faith are a logical outcome of this level of biological organization.
Yes, it is a good explanation and a warning too.

For a good interview with Wilson on this see the Slate article.

For a video interview see BookTV’s Social Conquest of the Earth.

Sunday, January 20, 2013

Simple Summaries of Things to Know -Not so Simple




By Gary Berg-Cross

I don’t trust (by definition) oversimplifications, but as an aid to a longer journey of understanding I can enjoy a wise, clever and well informed mind’s pithy summarizations.  A case in point is Richard Feynman (fierce & avowed atheist even as a young man and evidenced by his family battles to opt out of Jewish celebrations):

At almost thirteen I dropped out of Sunday school just before confirmation because of differences in religious views but mainly because I suddenly saw that the picture of Jewish history that we were learning, of a marvelous and talented people surrounded by dull and evil strangers was far from the truth.

                       Richard P. Feynman to Tina Levitan, February 7, 1967

He expressed a new affirmative stance this way:

"I thought nature itself was so interesting that I didn't want it distorted (by miracle stories). And so I gradually came to disbelieve the whole religion."
What Do You Care What Other People Think? (1988)

Well that’s not the generalization I’m thinking of, valuable as it is as background.  It more in the realm of Physics as published in his famous Lectures on Physics, including the layman accessible material re-published as Six Easy Pieces.  There he argued that the most important scientific knowledge - from physics to biology - is the simple fact that all things are made of atoms. Here is how he phrased it:

If, in some cataclysm, all of scientific knowledge were to be destroyed, and only one sentence passed on to the next generations of creatures, what statement would contain the most information in the fewest words? I believe it is the atomic hypothesis (or the atomic fact, or whatever you wish to call it) that all things are made of atoms—little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another. In that one sentence, you will see, there is an enormous amount of information about the world, if just a little imagination and thinking are applied...
(
Six Easy Pieces, p.4) 

Everything made of small units like atoms is a key idea to understanding the world and it plays out in more than Physics. Feynman sees it in biology too – 

everything that animals do, atoms do. In other words, there is nothing that living things do that cannot be understood from the point of view that they are made of atoms acting according to the laws of physics.”

Well I might not agree entirely here, but a physics point of view explains much and it took, as RF notes :
“some experimenting and theorizing to suggest this hypothesis, but now it is accepted, and it is the most useful theory for producing new ideas in the field of biology.”  (Six Easy Pieces, p.20) 

A temping simplification, but perhaps we need to be cautious of this as the most useful basis for our understanding. I think that you can argue, as Biologist Ernst Mayr has, for the importance of biology/evolutionary biology as an independent science, different from chemistry/physics and deserving of its own, distinct philosophy. Reductionist “understanding” of reality, I would argue, is too naive a jump and doesn’t get us to fuller explanations. In the diagram below you can see this view and how it gets extended form the molecular level to a meso-view of Biology and then on to Psychological realm of things like knowing and belief followed by populations of people.  Gee, maybe I can explain why some populations believe in God.  

Not so fast.  It gets complicated, so we need to qualify things as we move on from small grain atoms to meso- and psych-social phenomena.

It seems to me that basic unit frame is misleading for biology, since lower level functions cannot explain the functions of more complex organization of matter as are always found in living things. As I have in the diagram we have emergence.

It is even more misleading at higher scaled phenomena. Still there is much that can be imported from a Physics and Chemistry view into biology.  I’m thinking here is biology as physical networks. In the 1930s, physiologist Max Kleiber, put a number on this general idea. He showed that an animal's metabolic rate is proportional to its body mass raised to the power of 3/4 .  This relationship has been found to hold across the living world from bacteria to blue whales and giant redwoods, over more than 20 orders of magnitude difference in size.

Scaling laws based on exponents in which the denominator is a multiple of four apply to a host of other biological variables, such as lifespan.  In the 90s West, G. B., Brown, J. H. & Enquist(1)  found an explanation for the scaling laws in the dynamics of organisms‘ internal transport of nutrients and other resources
"There's maybe 200 scaling laws that have quarter powers in them," says West.

OK, so there is that.  But my candidate for a key idea is Evolution. Evolution unifies Biology and as Richard Dawkins said, nothing in Biology makes sense without evolution. That’s a highly informative propositions up there with matter is composed of units. One might also put it as a theory that the world is steadily changing, so organisms transform over time and this takes place via natural selection.   Daniel Dennett provides the importance of the idea more elaborately:


'in a single stroke, the idea of evolution by natural selection unifies the realm of life, meaning and purpose with the realm of space and time, cause and effect, mechanism and physical law.’

I like this appeal to unifying key ideas across scientific domains. Call it consillience if you like as E. O. Wilson does. And, not surprisingly, evolution also plays a key role in evolution, although that is a more recent development of note.
Human, cognitive evolution, is one of those candidate areas to provide a pithy insight.  I would make a start on a summary in the somewhat simply in the Feynman and Dawkins sentence style:

The capacity for human cognition is the result of evolutionary processes and is manifest in such processes as cognitive biases and reasoning.

Of course we may throw in some units that are involved in evolution.  Genes, RDA and DNA come to mind but they work as part of a system and so does natural selection.  Things seems a bit more complicated.  I’ll come back to that.

Various branches of Psychology including the recent thrusts in evolutionary psychology and decision science are the advanced outposts of experimentation and theorizing to investigate this idea framed as a hypothesis.  The WASH MDC chapter’s January lecture by Elizabeth Cornwell on “The Evolution of Sex” was a tour de force excursion in this realm.  By connecting the topic to “Why God is so Concerned with Sex” Dr. Cornwell takes a first step towards what might be some things to consider in the connection of evolution to issues of Religion.

But to get closer to that topic we might step back to the idea of atoms and such.  I didn’t provide a key sentence for Chemistry and that stands between Physics and Bio.  One thought is that we might put forward the Periodic Table as listing the chemical units. But many, many things of interest are molecular and thus higher units. We might suggest as a key thing to help understanding this constructed chemical world something about the chemical bond and how units get put together.  And it is this varying ways of composting structures from units that gets increasingly interesting and complicates things.  By the time we get to Biological organisms we are into a multitude of relations and many of then like individual development and specie’s variations are contingent.  Here history matters in ways it doesn’t to an atom and that makes stating a laws for biology a bit more difficult.

In physics, laws are intended to be universal.  In evolution, such laws seem hard to come by.  Even the "law" that acquired characters are not inherited has exceptions, because not all heredity depends on the sequence of bases in nucleic acids (something noted by John Maynard Smith) So Evolutionary theory is NOT a “law” derived as things are in Physics from mathematics. It’s not that we can’t make summary statements, but that the steps to go from there to some well understood and somewhat complete explanation gets pretty drawn out.

Think of gas atoms colliding to produce gross phenomena like pressure. Sure we have a PV=NRT equation that lets us figure some things out.  There is no such simple, closed law for evolution.  It matters what the history of atoms of bio -species and genes has been.  Our Bio candidate of evolution is not a "law" in the mathematical sense of the term. One’s tendency to be chubby gets partially explained by genetics but it is dynamic and interacts with many factors life. As part of the biological part we might have integrate the networks of Biology from neural networks, genetic and metabolic networks or patterns of protein interaction.  It’s all important and part of interlocking systems that have evolved over time.  And then it gets to interact in humans with culture.

For all these reasons of contingency and varied relations one is drawn into saying more about what seems a simple thing to begin with.  And perhaps it is these summaries of the interactions that are involved that should be part of what we need to know and would pass along as wisdom to a post apocalyptic world. That and advice to be skeptical. As Feynman put it:

“I think it's much more interesting to live not knowing than to have answers which might be wrong.”

Image Credits

Simple Explanations http://digitalsplashmedia.com/


Richard Feynman: http://www.spaceandmotion.com/quantum-mechanics-richard-feynman-quotes.htm








Reductionism Diagram:  by Gary Berg-Cross from a talk to the Evolutionary Society, “Arguing for Biological Autonomy” &  Biological Reality, Discussions of E.Mayr’s 25th book, What Makes Biology Unique?:Considerations on the Autonomy of a Scientific Discipline