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Ask Me Anything with Susan Schneider & Robert Lawrence Kuhn: Can You Upload Your Mind? (Part 3)
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Key Moments
Mind uploading might create a digital copy, but it likely won't preserve your first-person identity or consciousness, making virtual immortality impossible.
Key Insights
Susan Schneider is skeptical about mind uploading, arguing that even a perfect digital copy of the brain may not be the same person due to the separation of consciousness and survival.
The possibility of mind uploading hinges on one's theory of consciousness; computational functionalism, which assumes the brain is like a computer, is a common but not universally accepted framework.
Replicating the human brain, with its 85 billion neurons and potential quantum properties, presents an immense technological hurdle, possibly requiring centuries or millennia, even if computational functionalism is correct.
While AI consciousness is a separate question, the potential for AI to perfectly emulate a person could fool loved ones into believing they are conversing with the original, highlighting the difference between emulation and survival.
Philosophical concepts like the Ship of Theseus and transporter thought experiments are crucial for understanding personal identity and how it might persist (or not) through radical change or duplication.
The scientific exploration of phenomena like near-death experiences and telepathy, while controversial, could yield insights into consciousness, but current explanations often lean towards physiological or quantum mechanical frameworks, heavily dependent on the underlying theory of consciousness.
Digital copies versus personal survival
The discussion on mind uploading immediately confronts the fundamental question of whether a digital copy of one's brain would truly be the same person. Susan Schneider expresses skepticism, emphasizing the crucial distinction between creating a conscious AI or a digital replica and ensuring the survival of one's first-person consciousness. She argues that even if technology advances to perfectly emulate a person's data and produce an AI that can convincingly mimic their behavior and communication—potentially fooling even loved ones—this does not equate to the individual's survival. This distinction is vital because one could potentially create conscious AI without the original person surviving the upload process. The complexity of the brain, with its 85 billion neurons, is also highlighted as a significant technological challenge, with some speculating that quantum properties might further complicate exact replication, potentially making it impossible even with immense technological advancement.
The role of consciousness theories
The feasibility of mind uploading is deeply intertwined with one's underlying theory of consciousness. Proponents of virtual immortality often implicitly or explicitly rely on computational functionalism, which posits that mental states are defined by their functional roles, much like software running on hardware. This view suggests that if the brain's functions can be replicated on a different medium, consciousness will follow. However, Schneider and Kuhn point out that this is just one among many theories. Other perspectives, such as those that do not view consciousness as purely computational or those that consider it a fundamental property of reality (like panpsychism or idealism), would likely lead to different conclusions about the possibility of uploading. If consciousness is not merely a function of information processing but relies on specific biological substrates or other non-computational properties, then a digital copy might lack genuine subjective experience or personal continuity.
Philosophical puzzles of identity
To grapple with the possibility of mind uploading and personal survival, philosophical thought experiments are essential. The Ship of Theseus paradox, where a ship's planks are replaced one by one until none of the original parts remain, asks whether it is still the same ship. Similarly, the Star Trek transporter, which deconstructs a person and reassembles them elsewhere, raises questions about survival versus replication. Would the reassembled person be the original, or a new entity? Derek Parfit's work on personal identity, particularly his 'transporter problem,' directly addresses these issues. These scenarios highlight that our ordinary notions of self and identity might not be robust enough to definitively answer whether a duplicated or reconstituted consciousness is indeed the 'same' person. Philosophers like Parfit, influenced by Buddhist traditions that question the existence of a permanent, substantial self, suggest that identity may be more fluid and less fixed than we commonly assume.
Technological hurdles and future possibilities
Even if computational functionalism were correct, the sheer scale and complexity of the human brain present monumental technological obstacles. Accurately mapping and replicating 85 billion neurons, along with their trillions of synaptic connections and the dynamic processes occurring at those synapses, is an undertaking far beyond current capabilities. Some researchers speculate that consciousness might even depend on quantum processes within neurons that are currently undetectable and unreplicable. Given these challenges, the timeline for achieving anything resembling mind uploading, if it's even possible, is likely centuries or millennia away. The advent of brain-machine interfaces that replace biological components with artificial ones offers a potential, albeit gradual, way to explore these questions experimentally, raising further quandaries about when, if ever, consciousness might fade or change during such a process.
Exploring telepathy and consciousness
The conversation touches upon speculative phenomena like telepathy and extra-sensory perception (ESP). While acknowledging the lack of definitive scientific evidence, Schneider and Kuhn suggest that understanding such phenomena, if they exist, would heavily rely on a robust theory of consciousness. Explanations could involve consciousness interacting with fundamental physics, perhaps through quantum entanglement, which exhibits 'spooky action at a distance' seemingly independent of space and time. This perspective suggests that certain aspects of consciousness might transcend conventional physical limitations, potentially offering a mechanism for non-local communication. However, both emphasize that any scientific investigation into telepathy must
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Common Questions
A primary challenge is that we don't fully understand consciousness itself, making it difficult to know what to copy. Additionally, the sheer complexity of the human brain, with its billions of neurons and potential quantum processes, poses a significant technological hurdle.
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Mentioned in this video
AI visionary and mind theorist, author of 'Artificial U, AI and the Future of Your Mind', and founding director of the Center for the Future of AI, Mind, and Society at Florida Atlantic University. She is also known for the Mindfest conferences.
A user who questioned the practical possibility of virtual immortality due to the immense complexity of the human brain compared to simpler organisms like fruit flies.
A user who raised the profound question of how we would verify the identity of an artificially produced being claiming to be the same person.
Mentioned for a program that answered questions in a way that convinced many people, potentially serving as an early form of digital emulation.
Mentioned as someone who investigated near-death experiences, raising the question of the epistemic meaning of physiological explanations for these experiences.
Associated with information theory and the concept of information as a reduction in uncertainty.
Mentioned in relation to his work on cellular automata ('rouad') suggesting that simple rules are fundamental to reality.
An author mentioned in the context of writing about space and time as emergent phenomena.
A philosophical paradox questioning whether an object that has had all its components replaced remains the same object, used as an analogy for personal identity over time.
Mentioned as an example of the boundaries of knowledge and the existence of unknowable truths, which the speaker finds appealing.
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