71 | Philip Goff on Consciousness Everywhere

Episode Summary

Executive Summary: Sean Carroll and Philip Goff debate consciousness, especially the hard problem: whether subjective experience can be fully explained by physical science. Carroll defends physicalism and emergentism; Goff argues panpsychism best fits consciousness by treating it as the intrinsic nature of physical reality. They dissect Galileo, dualism, Mary, zombies, intrinsic natures, and the prospects and ethics of a panpsychist science of mind.

Main Topics: The hard problem of consciousness (Priority: 5/5): The discussion centers on subjective experience—what it is like to feel, see, or taste—as distinct from behavioral or functional accounts of cognition. Goff argues this qualitative aspect resists purely quantitative physical description. Physicalism vs. panpsychism (Priority: 5/5): Carroll defends materialism/physicalism as a complete account of reality in terms of physics and emergence, while Goff contends that consciousness is fundamental and ubiquitous at the base level of nature. Galileo and the mathematization of nature (Priority: 4/5): Goff claims Galileo’s move to a quantitative science intentionally excluded qualities like color from physics, leaving consciousness outside the scientific framework and creating the modern explanatory gap. Mary, zombies, and explanatory gaps (Priority: 5/5): The hosts debate classic thought experiments: Mary is used to argue that neuroscience cannot capture all facts about color experience, while zombies test whether physical duplicates could lack consciousness. Intrinsic natures and Russellian panpsychism (Priority: 5/5): Goff argues physics describes what things do, not what they are in themselves; consciousness fills that gap as the intrinsic nature of matter. Carroll rejects the need for intrinsic natures and favors structural/mathematical description. Science, theory-building, and future research (Priority: 4/5): Goff emphasizes that neuroscience gives correlations but not full theories, and that consciousness research needs interdisciplinary work, including integrated information theory and split-brain studies, within a panpsychist framework. Ethical and environmental implications (Priority: 3/5): Goff suggests panpsychism may encourage a more spiritually satisfying worldview and stronger moral concern for nature, since trees and ecosystems could be seen as conscious in some minimal sense.

Key Arguments: Physical science uses a purely quantitative vocabulary, while consciousness is essentially qualitative, so a complete physical description appears to leave out subjective experience. Neuroscience can establish correlations between brain states and experiences, but correlations alone do not explain why particular neural activity is accompanied by a specific feeling like redness or hunger. Goff argues Galileo’s scientific revolution succeeded by excluding qualities from physics and relocating them into the observer’s consciousness, which was then outside science. The Mary argument is used to claim that even complete neuroscientific knowledge leaves out what it is like to see red, implying that experience contains facts beyond physical description. Goff’s Russellian view says physical entities have intrinsic natures, and these intrinsic natures are forms of consciousness; physics only tells us the causal/structural profile from the outside. Carroll responds that consciousness is an emergent higher-level phenomenon and that a full physical account of what neural systems do will eventually explain experience without requiring extra ontology. Both agree substance dualism is unattractive because immaterial minds interacting with brains should have detectable scientific consequences that are not observed. Goff sees panpsychism as a middle path: it preserves naturalism, avoids dualism, and explains consciousness without adding supernatural entities. Carroll argues the fact that we can describe behavior and brain dynamics mathematically suggests a complete account may be possible without postulating intrinsic conscious essences. The debate over zombies highlights whether a world physically identical to ours could lack consciousness; Goff says yes in principle, Carroll sees that as evidence that physical explanation and subjective experience are not yet reconciled.

Data Points: Years of renewed academic interest in panpsychism: 8-10 years - Goff says panpsychism has moved from being laughed at to being taken seriously in academic philosophy over roughly the last decade. Philosophical sources of revival: 1920s - Goff points to the rediscovered work of Bertrand Russell and Arthur Eddington from the 1920s as foundational for modern panpsychism. Historical comparison: 19th century - Goff compares Russell and Eddington’s role in consciousness studies to Darwin’s role in the science of life in the 19th century. Scope of integrated information theory work: 1 research visit - He mentions Hedda Hassel-Mirk spending a year in Giulio Tononi’s lab working on IIT within a Russell-Eddington framework.

Pivotal Quotes: "physical science works with a purely quantitative vocabulary, whereas consciousness is an essentially qualitative phenomenon" — Philip Goff: Goff’s opening framing of why the hard problem exists and why physics seems unable to capture experience. "the success of science, physical science in particular, of course, it's going to explain consciousness one day, but I think actually there's a different way of looking at the history of science" — Philip Goff: His challenge to the assumption that science’s success guarantees a future explanation of consciousness. "I don't think we've done it yet. So there you go." — Sean Carroll: Carroll’s admission that materialism has not yet produced a convincing explanation of consciousness, even though he remains confident it eventually will.

Implications: The exchange underscores that consciousness research still lacks a consensus framework. Panpsychism remains speculative but increasingly respectable, while physicalists must still explain subjective experience without invoking extra ontology. The debate also suggests possible ethical and environmental shifts if consciousness is viewed as widespread in nature.