Showing posts with label nature. Show all posts
Showing posts with label nature. Show all posts

Monday, September 30, 2013

Language is a Window into Human Nature


I just read The Stuff of Thought: Language as a Window into Human Nature, by Steven Pinker. When I finished it I was disappointed. I had heard so much about Pinker (this is the first book of his I’ve read), and I felt like I had learned very little about human nature. But as I reflected on it over the next few days, my opinion radically changed. I kept bumping into things that were illuminated by the insights in this book.

For example, I read an article about how robots are being programmed to follow some of the basic modes of human thought so they interface with humans better, and these basic modes are exactly what Pinker outlined.

The basic message of the book is that there are deep structures in our brains, evolved over countless millennia, which allow us to make sense of our sensory experience. These are very similar to the “categories of understanding” described by Immanuel Kant 225 years ago. Pinker lists space, time, substance, object, causation, force, possession, and goal as the basic concepts that form the scaffolding that constructs our mental model of the world.  

These models are very useful for helping us to navigate the physical world, but science has discovered that our evolved models don’t accurately match reality. Pinker writes, “They add up to a distinctively human model of reality, which differs in major ways from the objective understanding of reality eked out by our best science and logic.” In other words, the basic concepts box us in; they restrict how we can think about reality. This is why quantum physics is so hard to comprehend, and also why it is so difficult to put spiritual experiences into words.

Causation is one of the basic concepts, and it forms a big part of our worldview. We attribute causation whenever we see an action by an autonomous actor. Scientists have done studies where shapes move on a computer screen. If, for example, a yellow triangle moves towards a red circle and stops just when it touches the circle, and then the circle starts moving, subjects overwhelmingly say, “the triangle caused the circle to move.” There’s been research with shapes on computer screens in which the movements are so involved that the subjects start telling stories about the shapes as if they are living creatures, even imbuing them with emotions.

Tuesday, December 18, 2012

The Forest Unseen


Science has been a great boon to humankind. Anyone who has lived through a few days without power after a storm realizes how dependent we have become on the technological gifts of science. In 2004 I went 5 days without power after Hurricane Ivan hit western North Carolina; because I lived in the country this meant no running water either. My husband and I took the power crew out to lunch after they turned our power back on out of sheer gratitude for returning us to the 21st century.
But science has had some negative influences on our culture too. Scientists have made their work easier by imagining that life can be chopped up into little pieces and studied separately. They act as if this chopping up doesn’t have any effect on what they observe.
One of the consequences of this approach is the overemphasis of competition in the process of evolution: nature is composed of discrete individuals engaged in a brutal struggle for survival. The poet Alfred, Lord Tennyson described this view of nature as “red in tooth and claw.”
Some scientists are beginning to question this view of nature. They are putting the pieces back together to see the big picture: everything is interrelated, and cooperation balances competition in the mechanism of natural selection.
I’ve just read an astoundingly beautiful book, The Forest Unseen, by Dr. David George Haskell, which combines a poetic meditative sensibility with a scientist’s detail-oriented mind. Dr. Haskell is a professor of biology at the University of the South in eastern Tennessee. He found a patch of old-growth forest near his home, and within that forest designated a one-meter-square patch as his “mandala,” which he visited weekly throughout the course of a year. The book is composed of meditations on what he observed, and he finds inspiration in even the smallest things that most of us overlook.
I would recommend this book to anyone who loves nature; it is filled with both lovely descriptive writing and fascinating information about so many creatures, from nematodes to vultures. For many years I have walked in the woods without a goal; I would hike to a spot and sit and observe. Dr. Haskell’s book has inspired me to look even closer than before.