Thursday, July 9, 2009
George Weigel subjects Caritas in Veritate to Higher Criticism
Wednesday, July 8, 2009
Why Descartes Haunts the Philosophy of Mind
"I thought that I should take a course precisely contrary, and reject as absolutely false anything of which I could have the least doubt, in order to see whether anything would be left after this procedure which could be called wholly certain. Thus, as our senses deceive us at times, I was ready to suppose that nothing was at all the way our senses represented them to be... But I soon noticed that while I thus wished to think everything false, it was necessarily true that I who thought so was something. Since this truth, I think, therefore I am, was so firm and assured that all the most extravagant suppositions of the skeptics were unable to shake it, I judged that I could safely accept it as the first principle of the philosophy I was seeking.I then examined closely what I was, and saw that I could imagine that I had no body, and that there was no world nor any place that I occupied, but that I could not imagine for a moment that I did not exist.... therefore I concluded that I was a thing or substance whose whole essence or nature was only to think, and which, to exist, has no need of space nor of any material thing or body. Thus it followed that this ego, by which I am what I am, is entirely distinct from the body and is easier to know than the latter, and that even if the body were not, the soul would not cease to be all that it now is."
The essence of Cartesianism is in the first paragraph, not the second, which is merely a conclusion from Cartesian first principles. Those first principles are 1) The assertion of method as foundational to true philosophy, and 2) The selection of radical doubt as the method of choice. We have become so used to the Cartesian first principles that we tend to see past them and take them as self-evident first principles of thought itself. But they are not self-evident at all; at least they were not for Descartes. He spent the first part of the Discourse on Method justifying his beginning philosophy in method and radical doubt (which, once that doubt is asserted, makes one wonder about the cognitive status of the first part of the Discourse, since it is asserted prior to and without the benefit of the method.) To the extent that we see the basic task of the philosopher as to "doubt things", or think that we need special training in order to philosophize, we have adopted the Cartesian approach to philosophy. For "special training" is nothing other than education in technical method, and that doubt should be a first principle of philosophy is itself open to philosophical doubt.
"The view implicit in this book, which I know want to make explicit, is that science does not name an ontological domain; it names rather a set of methods for finding out about anything at all that admits of systematic investigation... There is no such thing as the scientific world. There is, rather, just the world, and what we are trying to do is describe how it works and describe our situation in it. As far as we know, its most fundamental principles are given by atomic physics and, for that little corner of it that most concerns us, evolutionary biology. The two basic principles on which any such investigation as the one I have been engaging in depends on are, first, the notion that the most fundamental entities in reality are those described by atomic physics; and, second, that we, as biological beasts, are the products of long periods of evolution, perhaps as long as five billion years."
Tuesday, July 7, 2009
Steven Pinker, Evolution and the Mind
"Modernism and postmodernism cling to a theory of perception that was rejected long ago; that the sense organs present the brain with a tableau of raw colors and sounds and that everything else in perceptual experience is a learned social construction. As we saw in preceding chapters, the visual system of the brain comprises some fifty regions that take raw pixels and effortlessly organize them into surfaces, colors, motions, and three-dimensional objects. We can no more turn the system off and get immediate access to pure sensory experience than we can override our stomachs and tell them when to release their digestive enzymes. The visual system, moreover, does not drug us into a hallucinatory fantasy disconnected from the real world. It evolved to feed us information about the consequential things out there, like rocks, cliffs, animals, and other people and their intentions." (p. 412)
Sunday, July 5, 2009
The Modeling Mind, Science and Post-Modernism
Saturday, July 4, 2009
The Mind as a Model-Maker
"Our brains are essentially model-making machines. We need to construct useful, virtual-reality simulations of the world that we can act on." [p. 105]
"From a philosopher's point of view, there is a lot of nonsense in this popular notion. We don't create an individual world but only a world-model. Moreover, the whole idea of potentially being directly in touch with reality is a sort of romantic folklore; we know the world only by using representations, because (correctly) representing something is what knowing is." [p. 9]
"Nor is it true that we can never get out of the tunnel or know anything about the outside world: Knowledge is possible, for instance, through the cooperation and communication of large groups of people - scientific communities that design and test theories, constantly criticize one another, and exchange empirical data and new hypotheses." [p. 9]
"Philosophers like Immanuel Kant or Franz Brentano have theorized about this 'unity of consciousness': What exactly is it that, at every single point in time, blends all the different parts of your conscious experience into one single reality? Today it is interesting to note that the first essential insight - knowing that you know something - is mainly discussed in the philosophy of mind, whereas the neuroscience of consciousness focuses on the problem of integration: how the features of objects are bound together. The latter phenomenon - the One-World Problem of dynamic, global integration - is what we must examine if we want to understand the unity of consciousness."
Friday, July 3, 2009
Magical perspective of science
Monday, June 22, 2009
An example of the modern expert
There is a timely example of this in the latest issue of The Atlantic. The author even explicitly compares the modern therapist to a priest or a shaman:
And yet at the end of the day—literally during a five o’clock counseling appointment, as the golden late-afternoon sunlight spilled over the wall of Balinese masks—when given the final choice by our longtime family therapist, who stands in as our shaman, mother, or priest, I realized … no. Heart-shattering as this moment was—a gravestone sunk down on two decades of history—I would not be able to replace the romantic memory of my fellow transgressor with the more suitable image of my husband, which is what it would take in modern-therapy terms to knit our family’s domestic construct back together.
Sandra Tsing Loh is talking about her decision to divorce her husband of twenty years. What is interesting is the manner in which Loh describes the situation in terms of abstract concepts and forces that have almost dictated her decision. She has committed adultery, apparently, and according to the therapist the "domestic construct" can survive only if Loh can replace the romantic memory of her lover with that of her husband. Can she do it? Well, she seems not to think so, saying that "I would not be able" to replace it. I wonder.. how does she know? Has she tried? And why does she so uncritically accept the therapeutic assertion that replacing romantic memories is the decisive act in restoring a marriage? Well, because the expert says so, and in the modern world, only experts know things, not ordinary people.
It's the fatalism of the passage that strikes me. The marriage cannot work unless Loh can peform the ritual memory replacement prescribed by the therapist. In the old days, evil spirits might roam the world looking for the ruin of souls, but there was nothing inevitable about their effect. Evil spirits ruin man through tempting him to sin, but through prayer, the sacraments, and the practice of ordinary virtue, temptation could be overcome and evil spirits thwarted. Even if man succumbs to sin - by committing adultery, for example - there was nothing inevitable about the result. Sin triumphs only if man allows it to triumph, which, unfortunately, man sometimes grants. But the inevitability of the triumph of sin, that there is a time when sin decisively undermines our freedom to overcome it and its effects, is something the modern therapist apparently accepts but the old priest would have resisted with every fiber of his being.
One difference between the old priest and the modern expert is that the priest never allowed that the mysterious powers were powerful enough to fully undermine the freedom of man. His main function, in fact, was to administer sacraments that restored man's freedom in the face of the powers that would dominate him. This includes every kind of power; the power of demons to tempt us to sin, or the power of political authorities to corrupt our conscience (see St. Thomas More and King Henry VIII). Now you may dismiss the angels and demons the priest believed in as fantasy - fair enough. But the point is that the priest always thought that man had the wherewhithal to side with angels against the demons, no matter his station or education. The wealthiest king was still as subject to the temptation to sin as much as the poorest peasant, and both had access to the sacraments that would save them both in this world and the next; in this they were perfectly equal. Not so much anymore. Now the poor peasant is the powerless victim of social and economic forces beyond his control, forces that are known only by the experts and those with the money to pay them. Only the woman with money is able to pay for the expert advice that would tell her how to knit her domestic construct together, unless she is lucky enough to get on the Dr. Phil show.
It's not just mysterious psychological forces that dominate us in the modern world, but chemical forces as well. Loh refers to a book that reveals the manner in which our romantic destiny is determined by chemistry (literally):
Why Him, Why Her explains the hormonal forces that trigger humans to be romantically attracted to some people and not to others (a phenomenon also documented in the animal world). Fisher posits that each of us gets dosed in the womb with different levels of hormones that impel us toward one of four basic personality types:
The Explorer—the libidinous, creative adventurer who acts “on the spur of the moment.” Operative neurochemical: dopamine.The Builder—the much calmer person who has “traditional values.” The Builder also “would rather have loyal friends than interesting friends,” enjoys routines, and places a high priority on taking care of his or her possessions. Operative neurotransmitter: serotonin.
The Director—the “analytical and logical” thinker who enjoys a good argument. The Director wants to discover all the features of his or her new camera or computer. Operative hormone: testosterone.
The Negotiator—the touchy-feely communicator who imagines “both wonderful and horrible things happening” to him- or herself. Operative hormone: estrogen, then oxytocin.
Some of the combinations work and others don't. An Explorer marrying and Explorer, for example, isn't likely to work, but a Builder marrying a Builder will be boring but permanent. Loh's friend Ellen discovers through the book the reason that her marriage never did and never could work:
Exclaims Ellen, slapping the book: “This is why my marriage has been dead for 15 years. I’m an Explorer married to a Builder!” (Ron literally is a builder—like Ian, he crafts wonderful shelves and also, of course, cooks.) But what can Ellen do? Explorer-Explorer tends to be one of the most unstable combinations, whereas Fisher suspects “most of the world’s fifty-year marriages are made by Builders who marry other Builders.”
But what can Ellen do? In the modern world, nothing at all but accept the inevitability of the chemical forces that dominate her life. Dopamine and Serotonin are gods who brook no appeal.
P.S. Don't you just love the way Ellen identified herself as an Explorer? Why, I must be an Explorer, because I'm "creative"and an "adventurer." My boring old husband, however, is just a "Builder", attached to his "traditional values", his loyal but boring friends (friends, you see, are either loyal or interesting, but can't be loyal and interesting), and really is just a selfish boob, because he's mostly worried about taking care of his possessions (i.e. polishing his BMW). Fortunately for Ellen, chemistry dictates that she can do nothing but rid herself of this boat anchor of a guy.