Tag Archives: Descartes

The Jellyfish of Mind and Being

16 December 2025 By in Philosophy, Science Tags: , , , , , , , Leave a comment

This essay began as a passing thought about jellyfish, those umbrellas of the sea drifting in blooms, fluthers, smacks, and swarms. They have no brain, no central command, only a diffuse matrix of neurons spread across their bodies. Yet they pulse, sting, drift, eat, and spawn; all without any trace of self-awareness.

This decentralized nerve net exposes the brittleness of Descartes’ dictum, cogito ergo sum: “I think, therefore I am.” Descartes, as did Socrates before him, equated thinking with consciousness.

For Socrates, thinking was the essence of the soul, inseparable from awareness and virtue. For Descartes, thinking was the proof of existence: the cogito. For philosophers today, consciousness reaches beyond thought, defined by the raw fact of experience; the sheer presence of what is.

Philosophers and neuroscientists now separate thinking (Reasoning, problem-solving, language; although language is at minimum a bridge from brain to mind) from consciousness (the subjective “what it’s like” experience). Yet separating the two only deepens the fog, the mystery of being. A newborn may have consciousness without thought. A computer may “think” without consciousness. A jellyfish reacts but does not reflect; its life is sensation without self-awareness.

Consciousness is more than biology or electronics, a core of being rising above life, thought, and reaction. Living is not the same as consciousness. Living is metabolism, reaction, survival. Consciousness is the something extra, the lagniappe, the “what it’s like” to be. A dog feels pain without philosophizing. A newborn hungers without reflection. A jellyfish recoils from harm, detects light, adapts its behavior. Is that sentient? Perhaps. But self-aware thought? Almost certainly not.

The spectrum of awareness occupies a wide corridor of argument and reality. On one end, the jellyfish: life without thought, existence without awareness. On the other, humans: tangled in language, reflection, and self-modeling cognition. Between them lies the mystery. Anesthesia, coma, or dreamless sleep show that thought can vanish while consciousness flickers on, or vice versa. The two are not bound in necessity; reality shows they can drift apart.

Neuroscience maps the machinery, hippocampus for memory, thalamus for awareness, but cannot settle the duality. Neurons may spark and signals flow, yet consciousness remains more than electrical activity. It is not reducible to living. It is not guaranteed by thought. It is the specter of being that transcends living biology.

The jellyfish reminds us that being does not require thinking. Humans remind us that thinking does not explain consciousness. Between them, philosophy persists, not by closure, but by continuing to ask.

Perhaps the jellyfish is not a primitive creature but a reflecting pool of possibilities: showing us that being does not require thinking, and that consciousness may be more elemental than the cogito admits. The question is not whether we think, but whether we experience. And experience, unlike thought, resists definition but it defines who we are.

In the end, Scarecrow, like the jellyfish, had no brain but was deemed the wisest man in Oz.

Graphic: A Pacific sea nettle (Chrysaora fuscescens) at the Monterey Bay Aquarium in California, USA. 2005. Public Domaine

Mind and Brain

13 March 2025 By in Science Tags: , , , , , , , , , Leave a comment

“Life is never made unbearable by circumstances, but only by lack of meaning and purpose.” — Viktor Frankl, Holocaust survivor and psychiatrist 

For centuries, we’ve assumed consciousness resides in the brain. Yet, despite decades of slicing, mapping, and probing, its precise location remains elusive. Dr. Wilder Penfield, a neurosurgeon who charted the brain’s sensory and motor regions in the mid-20th century, wrestled with what we might call “self and memory.” While he pinpointed areas tied to movement and sensation, he couldn’t locate the “seat” of consciousness. By the 1960s, this led him to a bold hypothesis: the mind might not be fully reducible to brain activity. In his view, brain and mind could be distinct, with the mind perhaps holding a non-physical dimension—a whisper of something beyond neurons and synapses.

Fast forward to today, and researchers like Michael Levin at Tufts University are pushing this question further, though differently. Levin doesn’t dismiss the brain’s role in consciousness but argues cognition isn’t confined there. He proposes that intelligence and goal-directed behavior arise across the body’s cells and tissues. The brain, in this model, acts as a hub for processing and storing information—not the sole architect of the mind. Levin’s team explores how systems beyond the brain—from cellular networks to synthetic constructs—display mind-like traits: agency, problem-solving, and the pursuit of goals.

At the heart of Levin’s work is bioelectricity, the electrical signaling that guides cells from the zygote’s first spark to a fully formed organism. He sees it as a blueprint, directing how cells collaborate toward a larger purpose, much like ants hauling food to their colony. Each contributes to a collective intelligence, shaped by bioelectric cues that drive development and behavior. Levin stays rooted in empirical science, mapping the “how” without chasing the “why”—hinting at a distributed mind but avoiding a single source or controller.

Could memory bridge consciousness to the self, and perhaps beyond? For Penfield, electrical jolts to the brain summoned vivid past moments—smells, voices—yet the “I” reliving them remained elusive, suggesting a unity beyond the physical. Levin offers a twist: if memory isn’t just locked in the brain but woven into the body’s bioelectric web, consciousness and self might emerge together, shared across every cell. Each recalls its role, its history, to pursue a shared aim—like ants rebuilding their hill. Memory, then, isn’t merely a record but the thread weaving awareness into identity, maybe even purpose. Yet, does bioelectricity simply reflect life’s mechanics, a benign dance of physics and biology? Or does it hint at a deeper force—a directionality we’ve long named “lifeforce” or “soul”? Levin’s inductive lens echoes Descartes’ “I think, therefore I am”—proving existence through awareness but leaving purpose a shadow on the horizon. Science maps the signals; their origin remains unanswered.

Sources: Technological Approach to Mind Everywhere… by Levin and Resnik, 2025, OSF Preprints; Ingressing Minds… by Michael Levin, 2025, PsyArXiv Preprints. Graphic: Molecular Thoughts by Agsandrew, iStock, Licensed.