What is the 'strong assumption' in consciousness research?

The 'strong assumption' is the belief that consciousness arises from complex processing, primarily in brains and central nervous systems, and that it doesn't exist elsewhere. This assumption comes from our human-centric view and the lack of communication with different types of systems.

How can split-brain patients provide insights into consciousness and the self?

Split-brain research demonstrates that different hemispheres of the brain can exhibit independent conscious awareness and opinions, even without the speaking hemisphere being aware of them. This suggests that what we perceive as a single 'self' or stream of consciousness might be an integrated illusion, with numerous other conscious experiences happening 'in the dark'.

How can sensory substitution and addition influence our understanding of reality?

Sensory substitution, like devices for blind or deaf people, allows the brain to adapt to new signals for perception. Sensory addition extends this to new senses, like feeling magnetic north. These technologies could lead to 'experiential science,' allowing humans to directly perceive and gain intuition about systems and forces we currently cannot experience, potentially transforming our understanding of physics.

Why do physicists believe space is emergent and not fundamental?

Physicists have reached a consensus that space, as we perceive it, emerges from something more fundamental, rather than being an inherent fabric of reality. Theories like the holographic principle suggest that spatial dimensions can arise from more basic 'degrees of freedom', similar to how a 2D film can project a 3D image in a hologram.

What is the difference between something being 'fundamental' and 'real' in physics?

Annaka Harris clarifies that 'fundamental' refers to the deepest, most irreducible level of reality where explanation stops. Many things are 'real,' like the sunrise or space itself, but they are emergent phenomena that can be further explained by more fundamental layers of physics, like Earth's rotation or underlying quantum processes.

What is the holographic principle and how does it relate to space?

The holographic principle suggests that the information contained within a 3D volume might be fully encoded on a 2D surface, similar to how a hologram works. This concept implies that space itself could be a projection or a mirage, and the true fundamental reality lies on a boundary, making space an emergent property.

How do meditative experiences relate to the concept of space, time, and self not being fundamental?

Deep meditative states and psychedelic experiences often lead to a dissolution of the sense of self, space, and time, while conscious awareness remains intact. This subjective experience aligns with scientific theories that question the fundamental nature of these concepts, suggesting that our ordinary perception is an 'interface' rather than a direct view of reality.

What is Lee Smolin's view on time as fundamental?

Lee Smolin believes that time is fundamental and a central aspect of the universe. His theory of quantum gravity places time at its core, suggesting that reality unfolds through a sequence of 'views' or events, with new, unprecedented views being associated with consciousness.

What is Carlo Rovelli's view on time as an illusion?

Carlo Rovelli views the flow of time as an illusion, proposing that our experience of time emerges from various levels of approximation, including memory, expectation, and thermodynamics. He argues that fundamental physics describes nature in terms of interconnected events and processes, rather than objects evolving through a linear, universal time.

What is the role of 'traces' in Carlo Rovelli's explanation of time?

In Rovelli's view, the apparent directionality of time (past being fixed, future open) is due to the abundance of 'traces' from past events, which is a thermodynamical phenomenon related to entropy gradients. We connect with microscopic variables, which carry information about the past, making the future appear more mysterious due to a lack of such traces.

What are 'minimal phenomenal experiences' (MPEs)?

Minimal phenomenal experiences (MPEs) are states described by philosopher Thomas Metzinger, often encountered during meditation or under psychedelics, where the body, self, space, and time dissolve, yet pure, unified awareness remains. These states offer a challenging perspective on the nature of being and consciousness without typical sensory content.

What If Consciousness Is Fundamental?: A Conversation with Annaka Harris (Episode #404)

Sam Harris

Science & Technology4 min read141 min video

Mar 25, 2025|143,081 views|2,579|786

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Key Moments

TL;DR

Consciousness may be fundamental, challenging physics and our understanding of reality.

Key Insights

The 'hard problem' of consciousness is difficult because it is intrinsically defined, unlike other phenomena explained by extrinsic properties.

The 'strong assumption' that consciousness arises only from complex processing in brains lacks strong evidence and may be a misleading starting point.

Exploring the possibility of consciousness being fundamental has implications for physics, suggesting space and potentially time might be emergent rather than fundamental.

The holographic principle offers a framework where a 2D surface can contain the information of a 3D volume, suggesting space might be an emergent property.

The concept of a unified self is challenged by neuroscience and considerations of consciousness, while concepts like memory and perception play key roles.

Relationalism, where reality is understood through connections and perspectives rather than isolated objects, is a concept gaining traction in physics.

UNDERSTANDING THE HARD PROBLEM OF CONSCIOUSNESS

The conversation begins by revisiting the 'hard problem' of consciousness, which is the mystery of how subjective experience arises from non-conscious matter. Annaka Harris explains that unlike phenomena like life or intelligence, consciousness cannot be defined by its external behavior or observable functions. Its very essence is subjective and internally defined, making it difficult to study through traditional scientific methods that rely on external observation. This intrinsic nature is what makes consciousness so perplexing compared to other scientific mysteries that have been solved by understanding their observable inputs and outputs.

CHALLENGING THE STRONG ASSUMPTION ABOUT CONSCIOUSNESS

Harris introduces the 'strong assumption' that consciousness arises from complex processing, likely within brains, and is not distributed elsewhere in the universe. This assumption is based on our limited evidence, as we primarily gain information about consciousness through communication with systems similar to ourselves. She argues that there's no empirical reason to support this assumption and proposes that starting with the alternative – that consciousness might be fundamental – could lead to new scientific discoveries. This reframing encourages a re-examination of our most basic beliefs about where and how consciousness exists.

CONSCIOUSNESS AND ITS POTENTIAL IMPLICATIONS FOR PHYSICS

The discussion shifts to how treating consciousness as fundamental could impact physics. Harris explores whether this perspective could resolve issues in current physical theories or if existing physics rules out such a possibility. The science of the fundamental is physics, making it the natural domain to investigate the nature of consciousness. This line of inquiry requires input from neuroscience but is ultimately a question for physics. The exploration suggests that established scientific frameworks might need to accommodate a more central role for consciousness.

THE HOLOGRAPHIC PRINCIPLE AND THE NATURE OF REALITY

The holographic principle is further explored through analogies, likening the universe to a projection on a 2D surface. This principle suggests that what we perceive as spatial distance might be a manifestation of differences in energy or information. The analogy of a hologram, where a 2D film conjures a 3D image, illustrates how a lower-dimensional surface can encode the information of a higher-dimensional volume. This perspective implies that our perceived space could be an emergent illusion, with the true fundamental reality lying in underlying quantum information.

RE-EVALUATING SELVES, causality, AND TIME

The conversation touches upon the deconstruction of the self, with neuroscience suggesting no physical location for a self in the brain and introspection revealing no such entity within conscious experience. Similarly, physics discoveries question the fundamental nature of space and time. Experiences described in meditation and through psychedelics, where senses of self, space, and time can diminish or disappear, are discussed. This phenomenological data, coupled with scientific findings, suggests that our perceived reality, including our sense of a stable self, may be constructed from more fundamental, dynamic processes.

RELATIONALISM, CAUSALITY, AND THE FLOW OF TIME

Physicists Carlo Rovelli and Lee Smolin offer perspectives on time. Rovelli argues that time, as we experience it, is emergent, not fundamental, suggesting it arises from memory, expectations, and the brain's processes. Smolin's 'causal theory of views' proposes a universe made of 'skies' or perspectives, potentially allowing for consciousness at a fundamental level. Both perspectives lean towards relationalism, where reality is understood through connections and interactions rather than discrete objects. The idea of 'traces' – past events leaving more information than future events – is proposed to explain our perception of time's unidirectional flow and causality.

Mentioned in This Episode

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Common Questions

Annaka Harris explains that the 'hard problem' refers to the mystery of how non-conscious matter can configure itself to produce subjective, felt experience. Unlike other scientific phenomena, consciousness cannot be directly observed from the outside, only experienced intrinsically, making its physical origins difficult to situate.

Topics

Hard Problem Of Consciousness Fundamental Reality Relationalism

Mentioned in this video

personJana Levin

Physicist interviewed for the series.

mediaLights On

The title of Annaka Harris's audio documentary/book series on Audible, inspired by an analogy about flipping a light switch to illustrate the hard problem.

personSasha Fink

Researcher who conducted a study on magnetic north perception, mentioned in the context of shared felt experiences.

bookSpooky Action at a Distance

Book by George Musser about quantum mechanics.

bookMonadology

Founding document of relationalism by Leibniz, cited by Lee Smolin.

personAnil Seth

Neuroscientist and physicist who Annaka Harris spoke with; he refers to our perceptions as 'controlled hallucinations'.

personSusan Blackmore

Consciousness expert interviewed for the series.

bookPutting Ourselves Back in the Equation

Book by George Musser that addresses how consciousness relates to fundamental physics.

bookConscious: A Brief Guide to the Fundamental Mystery of the Mind

Book by Annaka Harris that covers the hard problem of consciousness.

personSarah Imari Walker

Astrophysicist who agreed with the idea of countless conscious experiences happening in the brain that don't enter memory. Author of 'The Ascent of Information'.

personGeorge Musser

Science journalist and author who guided Annaka Harris through quantum physics concepts. Author of 'Spooky Action at a Distance' and 'Putting Ourselves Back in the Equation'.

bookEinstein's Unfinished Revolution

Brilliant book by Lee Smolin, influencing Annaka Harris's understanding of physics.

bookFlatland: A Romance of Many Dimensions

A book mentioned as an analogy to understand higher dimensions, where a 2D being perceives a 3D world as mysterious.

personNima Arkani-Hamed

Theoretical physicist at The Institute for Advanced Study at Princeton, whose lecture on ads CFT correspondence helped illustrate the holographic principle.

toolWaking Up