In a recent report, Nature addressed several studies on disembodied brains grown in the lab. One of those studies, published last year by Alysson Muotri of the University of California, San Diego, showed that brain organoids (organized clusters of brain cells) displayed electrical signals reminiscent of a twenty-five-week-old pre-term baby. the electrical activity continued for several months until the experiment was eventually stopped. Experiments with such brain organoids have left many wondering whether we should be concerned about creating brains-in-a-dish. Organoids, such as those made of kidney or liver cells, have been used to study drug development and disease. They are made either from embryonic stem cells—an ethically problematic source because they involve the destruction of an embryo—or induced pluripotent Read More ›
AI is good at winning games. But how does this (and other) accomplishments translate to applications in the real world? George Gilder and Robert J. Marks discuss artificial intelligence, games, and George Gilder’s new book Gaming AI: Why AI Can’t Think but Can Transform Jobs (which you can get for free here). Show Notes 00:35 | Introducing George Gilder 02:12 Read More ›
If your mind is one, how can it talk to itself? What will artificial intelligence be like in the future. Dr. Geoffrey Simmons and Dr. Robert J. Marks discuss the mind, artificial intelligence, and Dr. Simmons’ book Are We Here to Re-Create Ourselves?: The Convergence of Designs. Show Notes 00:26 | Introducing Dr. Geoffrey Simmons 01:07 | Thinking and problem-solving Read More ›
Will computers ever be conscious? What happens to our consciousness after we die? Has science made philosophy irrelevant? Dr. Michael Egnor and Dr. Bernardo Kastrup discuss consciousness, artificial intelligence, and philosophy. Show Notes 00:38 | Introducing Dr. Bernardo Kastrup 01:12 | Can computers think? 03:34 | Intentionality 07:11 | Does the natural world have a person behind it? 10:34 | Read More ›
Did consciousness evolve? How do materialists deal with the definition of consciousness? Dr. Michael Egnor and Dr. Bernardo Kastrup discuss consciousness, evolution, and intelligent design. Show Notes 00:28 | Introducing Dr. Bernardo Kastrup 01:05 | Did consciousness evolve? 03:35 | Two alternatives for Darwinists 05:00 | Intelligent design theory 07:15 | Jerry Fodor on natural selection 10:52 | Random mutations Read More ›
How do we know what happens around us? Is the whole universe conscious? Dr. Michael Egnor and Dr. Bernardo Kastrup discuss panpsychism, cosmopsychism, and conciousness. Show Notes 00:35 | Introducing Dr. Bernardo Kastrup 01:29 | Panpsychism and cosmopsychism 02:42 | Using your senses to convey information to the mind 04:24 | Communicating feelings 05:33 | Differentiating complex internal states from Read More ›
Philosopher Roger Scruton (1944–2020) defined neuroscience thus (I paraphrase): Neuroscience is a huge collection of answers with no memory of the questions. Over the past century, neuroscientists have amassed vast libraries of data. But their interpretation of their data on the mind-brain question shows no meaningful understanding of the genuine questions their research is tasked to answer. These questions are ancient: What is the relationship between the soul (or mind) and the body (or brain)? How is it that matter can think? How is it that third-person stuff gives rise to first-person experience? Answers to such questions from the neuroscience community show little evidence of the profound and subtle nature of the questions. Thus, neuroscientists provide answers to questions they Read More ›
Those who’ve survived near-death experiences often describe an otherworldly journey. Can near-death experiences shed light on the mind/body problem? Robert J. Marks discusses near-death experiences and the mind/body problem with Dr. Walter Bradley. Show Notes 0:00:45 | Introducing Dr. Walter Bradley, Emeritus Distinguished Professor at Baylor University 0:01:10 | Beliefs and objectivity 0:03:35 | A priori assumptions 0:05:01 | What Read More ›
Neuroscientists used to think that each neuron was as complex as a switch. But newer research shows that each neuron is more similar to a microprocessor. Musk’s 3,000 Neuralink electrodes controlled by a single processor does not remotely match your brain’s 80 billion processors, all linked together.
Physicalist David Papineau argues that consciousness “seems mysterious not because of any hidden essence, but only because we think about it in a special way.” In short, it's all in our heads. But wait, say others, the hard problem of consciousness is not so easily dismissed.
If you’re in a coma, can you still think? Some fascinating neuroscience research sheds light on the brain function of those in comas. Robert J. Marks and Dr. Michael Egnor discuss comas, brain function, and types of thought. Show Notes 00:29 | Introducing Dr. Michael Egnor, Professor of Neurosurgery and Pediatrics at State University of New York, Stony Brook 00:58 Read More ›
Mental activity always has meaning—every thought is about something. Computation, by contrast, always lacks meaning in itself. A word processing program doesn’t care about the opinion that you’re expressing when you use it. In fact, what makes computation so useful is that it doesn’t have its own meaning. Because the mind always has meaning and computation never does, the mind is the opposite of computation.
Michael Egnor points out that Penfield offered three lines of evidence: His inability to stimulate intellectual thought during brain operations, the inability of seizures to cause intellectual thought, and his inability to stimulate the will. … So he concluded that the intellect and the will are not from the brain. Which is precisely what Aristotle said.
From the perspective of a brain surgeon, is there evidence for a soul? Is there evidence for a spirit? Robert J. Marks discusses neuroscience, brain surgery, the soul, and the spirit with Dr. Michael Egnor. Read More ›
In his continuing discussion with Robert J. Marks, Michael Egnor argues that emergence of the mind from the brain is not possible because no properties of the mind have any overlap with the properties of brain. Thought and matter are not similar in any way. Matter has extension in space and mass; thoughts have no extension in space and no mass.
Is the mind an emergent property of the brain? Or is there something else going on? Robert J. Marks discusses the different theories of the mind — including materialism, panpsychism, and dualism — with Dr. Michael Egnor. Read More ›
Patients after split-brain surgery are not split people. They feel the same, act the same, and think the same, for all intents and purposes. Materialists like Jerry Coyne focus on subtle differences and distort the big picture.
Near-death experiences often include a look at a person’s impact on the lives of others and a meeting with an otherworldly figure. Do religious texts like the Bible talk about near-death experiences? Robert J. Marks discusses near-death experiences with Dr. Walter Bradley. Show Notes 00:26 | Introducing Dr. Walter Bradley, Emeritus Distinguished Professor at Baylor University 00:37 | John Burke’s Read More ›
Can near-death experiences shed light on the mind/body problem? Robert J. Marks discusses near-death experiences and the mind/body problem with Dr. Walter Bradley. Show Notes 01:25 | Introducing Dr. Walter Bradley, Emeritus Distinguished Professor at Baylor University 01:55 | Definition of a near-death experience 03:36 | Near-death experiences and the mind/body problem 05:20 | A blind woman sees 07:50 | Read More ›
Are we simply matter and chemical reactions or are our minds separate from our bodies? Robert J. Marks discusses the mind/body problem with Dr. Walter Bradley. Show Notes 00:34 | Introducing Dr. Walter Bradley, Emeritus Distinguished Professor at Baylor University 01:01 | Beliefs and objectivity 04:00 | A priori assumptions 04:36 | What is the mind/body problem? 05:45 | The Read More ›