Removing Prepositions in Defining Thought

Having turned my back on propositions, I thought, what am I going to do about this? The area where it really comes up is when you start looking at the contents of consciousness, which is my number one topic. I like to quote Maynard Keynes on this. He was once asked, “Do you think in words or pictures?” to which he responded, “I think in thoughts.” It was a wonderful answer, but also wonderfully uninformative. What the hell’s a thought then? How does it carry information? Is it like ...

 Retelling the Allegory of the Cave

“THERE IS AN ancient legend of Old Earth that speaks of three men of Aegina, who lived in a cave deep in the mountains,” said Magnus, with the warmth of a natural storyteller. Though he had heard this story before, Ahriman found himself captivated by Magnus’ voice, the natural charisma that loaded every commanding word. “These men lived shut off from the light of the world and they would have lived in permanent darkness but for a small fire that burned in a circle of stones at the he...

 The Staggering Amount of Progress Made in Recent History

BOOKS BOOK REVIEWS 'Millennium' is full of gratitude for the staggering advances of 1,000 years csmonitor icon Latest News Save for later Subscribe One of the most bracing aspects of 'Millennium' is the breadth of factors it covers, from food production to sanitation conditions to the Christian Church Militant to the development of firearms to radical changes in transportation of both people and products. By Steve Donoghue NOVEMBER 24, 2016 Save for later View CaptionAbout video adsView Cap...

 The Evolving View of Science and Evil

Daedalus begins with an artillery bombardment on the Western Front, the shell bursts nonchalantly annihilating the human protagonists who are supposed to be in charge of the battle. This opening scene epitomizes Haldane's hard-headed view of war. And likewise at the end, when the biologist in his laboratory, "just a poor little scrubby underpaid man groping blindly amid the mazes of the ultramicroscopic," is transfigured into the mythical figure of Daedalus, "conscious of his ghastly mission ...

 Humans are Like Deer in the Anthropocene

I asked Rooney about the remarkable ability of deer to thrive in their home range—most of the U.S.—while producing ecosystem simplification and a biodiversity crash. In his own studies of deer habitats in Wisconsin, Rooney found that only a few types of grass thrive under a deer-dominant regime. The rest, amounting to around 80 percent of native Wisconsin plant species, had been eradicated. “The 80 percent represent the disappearance of 300 million years of evolutionary history,” he s...

 Can Identity Survive a 200-Year Lifespan?

Walter Glannon has argued that a lifespan of 200 years or more would be undesirable because personal identity could not be persevered over such a long life (Glannon 2002). Glannon’s argument presupposes that personal identity (understood here as a determinant of our prudential concerns) depends on psychological connectedness. On this view, we now have prudential interests in a future time segment of our organism only if that future time segment is psychologically connected to the organism�...

 Intellectual Exploration as Geographical Exploration

My own field of physics is passing today through a phase of exuberant freedom, a phase of passionate prodigality. Sometimes as I listen to the conversation of my young colleagues at Princeton, I feel as if I am lost in a rain forest, with insects and birds and flowers growing all around me in intricate profusion, growing too abundantly for my sixty-year-old brain to comprehend. But the young people are at home in the rain forest and walk confidently along trails which to me are almost invisib...

 Elements of Humanity's Future

The next hundred years will be a period of transition between the metal-and-silicon technology of today and the enzyme-and-nerve technology of tomorrow. The enzyme-and-nerve technology will be the result of combining the tools of genetic engineering and artificial intelligence. We cannot hope to predict the concrete forms in which a mature enzyme-and-nerve technology would express itself. When I think of the space technology of tomorrow, I think of three concrete images in particular. First, ...

 Steps to Colonizing Space

The third technological revolution which I see coming is the expansion of life's habitat from Earth into the solar system and beyond. This revolution may take a little longer than the other two. Perhaps it may take as long as a hundred years from now. In charting a possible course for this revolution, I take as my guide Ben Finney, an anthropologist at the University of Hawaii who has made a detailed study of the Polynesian navigators and their voyages of colonization from island to island ac...

 Science Communication: Definitions VS Metaphors

A hundred years ago, Charles Darwin could write books discussing the central problems of biology in language which was scientifically precise and still accessible to the general public. In those days the subject matter of biology was plants and animals. The language of Darwin was intelligible to experts and non-experts alike. One did not need a degree in {55} botany to understand the difference between a fern and a flower. Darwin could assume that his readers were familiar with the world of...