The Third Cartesian Error – in One Post!

The main development or change in how Descartes understands the mind from Meditations on First Philosophyto Passions of the Soul is that in this latter book his theory makes it possible for the body to act without the mind. In fact, I argue, he doesn’t leave the mind any way to affect the body at all even though he of course wants it to. There are a couple of reasons for this state of affairs. First, as we saw in the first Cartesian Error, he argues that the only thing the mind can do is think, and the body cannot think at all. Then in the Second Error, he argues that emotions aren’t thinking and explains that the human body works in such a way as to be able to start, continue and end emotions and emotion-based behavior. I call this organization, this explanation, an example of half-duplex communication between body and mind, a type of communication I previously said was exemplified by walkie-talkies and text messages. Let’s briefly review why this can’t be a reasonable way to look at how the mind and body interact.

 

If the mind were like a walkie-talkie, by definition only one end at a time can communicate. So if you had a spider on your leg, what would have to happen for you to get rid of it? First, the body would feel the pressure on your flesh. But for your mind to know the spider was there too would require one of four things, all of which have problems and raise more questions than they answer, (at least for Descartes):

 

Read the rest at my dissertation blog!

 

Debt and deleveraging: Uneven progress on the path to growth | McKinsey Global Institute | Financial Markets | McKinsey & Company

via mckinsey.com

Click through and read this if you have a chance, its worth it if you're nervous about our future. An excerpt:

"major economies have only just begun deleveraging. In only three of the largest mature economies—the United States, Australia, and South Korea—has the ratio of total debt relative to GDP fallen. The private sector leads in debt reduction, and government debt has continued to rise, due to recession. However, history shows that, under the right conditions, private-sector deleveraging leads to renewed economic growth and then public-sector debt reduction.
These are the principal findings of MGI’s latest perspective on deleveraging, which revisits the world’s ten largest mature economies to see where they stand in the process of reducing debt ratios (United States, Japan, Germany, France, United Kingdom, Italy, Canada, Spain, Australia, and South Korea)."

Whew! The last word on the Second Error!

Last time I finished up by saying that because of his interests and assumptions, Descartes was unable to reach the conclusion he wanted, that emotions are purely mental, and that he looked to be forced into one of two other conclusions: 1) that emotions can exist without mental content, or that emotions can exist without the soul; or 2) that his theory contradicts his assumptions because it's actually lends itself fairly well to defending the idea that emotions must be a type of thought and must have a physiological basis. 

Let's have one last closer look. At the very beginning of his book (A1) he explains emotions are "passive events" that happen to the person/soul, but are specifically referring to the person who they happen to. This fits well with his theory of how perception of things like pictures works. However, he also determined that what emotions are made from and how they are made is completely explainable by mechanistic physiology! To put it super-briefly, though he fixes the "home" of emotions in the soul, it is the body and memory that do nearly all, possibly even all, the work of supplying the mental/belief content necessary to start the physical processes that are emotional actions and reactions. This is actually pretty brilliant, but it was a disaster for his beliefs. So he had to find a way out, a way to show that emotions are perfomances of the mind and could not possibly be performances of the body. 

To flesh it out a little more, lets look at how fear would work (A38): he explains that the movements of the body that "accompany" the emotions do not depend on the soul, all that is required to put a passion in the soul is the proper course of certain chemicals towards the nerves in the heart. From there they can then strike the nerves that make the legs move - and sustain the action - which automatically causes movements in the pineal gland, which causes the soul to "feel and perceive" that we are fleeing from danger. This process can be started by a learned response (as a child you saw a bear eat your dog, now you see a bear and you run), or by "dispositions of the organs" (think reflexes or innate behaviors (flinching when you believe you see a snake, even if its a stick). That is, in a word, bodily volition. 

If you'd like to read the rest, check out my dissertation blog!

American Airlines, Bankruptcy, and the Housing Bubble : The New Yorker

We normally say that a company “went bankrupt,” implying that it had no choice. But when, recently, American Airlines filed for bankruptcy, it did so deliberately. The airline had four billion dollars in the bank and could have kept paying its bills. But it has been losing money for a while, and its board decided that it was foolish to keep throwing good money after bad. Declaring bankruptcy will trim American’s debt load and allow it to break its union contracts, so that it can slim down and cut costs.

American wasn’t stigmatized for the move. Instead, analysts hailed it as “very smart.” It is now generally accepted that when it’s economically irrational for a company to keep paying its debts it will try to renegotiate them or, failing that, default. For creditors, that’s just the price of business. But when it comes to another set of borrowers the norms are very different. The bursting of the housing bubble has left millions of homeowners across the country owing more than their homes are worth. In some areas, well over half of mortgages are underwater, many so deeply that people owe forty or fifty per cent more than the value of their homes. In other words, a good percentage of Americans are in much the same position as American Airlines: they can still pay their debts, but doing so is like setting a pile of money on fire every month.

These people have no hope of ever making a return on their investment in their homes. So for many of them the rational solution would be a “strategic default”—walking away from the mortgage and letting the bank take the house. Yet the vast majority of underwater borrowers keep faithfully paying their mortgages; studies suggest that perhaps only a quarter of all foreclosures are strategic. Given how much housing prices have fallen, the question is why more people aren’t just walking away.

Read the rest of this excellent story at newyorker.com

A very good point.