Mind Matters Natural and Artificial Intelligence News and Analysis

TagThomas Nagel

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Close-up of a green plant with sunlight illuminating the leaves on the right side of the image

Three Recent Books Argue for Consciousness in Plants

The award-winning environment journalist who reviews the books tackles the question, “If so, is it right to eat even plants?”
The idea that plants can "feel" things, based on their complex reactions, may stem from a misunderstanding of categories of consciousness. Read More ›
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Quantum particle, quantum mechanics

Can a Materialist Consciousness Theory Survive Quantum Mechanics?

Quantum mechanics requires that the observer be part of the measurement; thus quantum measurements must include consciousness
If quantum measurements must include consciousness, the dualists are correct, says philosopher Angus Menuge: Consciousness exists in its own right. Read More ›
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Ancient Forest, Hoh Rain Forest in Olympic National Park

Plants Help Each Other. Are They Self-Aware? Can They Suffer?

Recent discoveries that plants can do many things that we used to think only animals could do raise some interesting questions

In recent decades, we have learned that plants are much more like animals in their use of information than earlier thought. They have nervous systems that use glutamate to speed transmission, as mammals do. And seeking to thrive and grow, they communicate extensively. Recently, environmental journalist Richard Schiffman interviewed forest ecologist Suzanne Simard, author of the just-released Finding the Mother Tree on the intelligence of trees: You also found that birches give sugars to fir trees in the summer through the mycorrhizal networks and that firs return the favor by sending food to birches in the spring and fall, when the birches lack leaves. Isn’t that cool? Some scientists were having trouble with this: Why would a tree send photosynthetic Read More ›

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Unfolding of Geometry

A Physicist and Philosopher Examines Panpsychism

Idealism says everything is an idea in the mind of God. Panpsychism says everything participates in consciousness (thus is not just an idea)
Bruce Gordon thinks that, for a thing to be conscious, there must be something that it “is like” to be that thing. Can panpsychism demonstrate that? Read More ›
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Thought Trails

Why Would a Neuroscientist Choose Panpsychism Over Materialism?

It seems to have come down to a choice between “nothing is conscious” and “everything is conscious”
Materialism becomes incoherent when it requires us to believe that we only imagine we are conscious — that’s a basic error in logic. Read More ›
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Antibiotic resistant bacteria inside a biofilm, 3D illustration. Realistic scientific background

Do Bacteria Warn Others While Dying from Antibiotics?

Scientists are learning more about the complex ways bacteria overcome efforts to control them

That’s what we learn from a new open-access paper in Nature titled “Dead cells release a ‘necrosignal’ that activates antibiotic survival pathways in bacterial swarms.” It’s sometimes described as “screams,” but it’s actually a release of chemicals, which amounts to the same thing: a warning to prepare for an onslaught of antibiotics. The scientists also noted another curious factor: The cascade of genes turned on by necrosignals not only protected the surviving swarm from antibiotics, but promoted future resistance to the compounds that killed their comrades. What’s more, the scientists realized that subpopulations of swarm bacteria were genetically variable; some were more susceptible to the antibiotics than others. Swarms of bacteria may collectively cultivate different subpopulations as an evolutionary survival Read More ›

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Hoodie with smoke in front of face

Has Science Shown That Consciousness Is Only an Illusion?

Using clever analogies, Philosopher Daniel Dennett argues that consciousness is all smoke and mirrors
British philosopher Papineau recommends taking Dennett’s theories “with a pinch of salt.” American essayist David Bentley Hart is less charitable: “Daniel Dennett’s latest book marks five decades of majestic failure to explain consciousness” Read More ›