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Dr. Jade Teta's avatar

A sharp reader is going to notice something here, so let me get ahead of it. I played a little trick on you at the beginning of this piece. Did you catch it? The diffusion problem is real, but it was never really about crossing your body head to toe. That part is handled by plumbing, not physics. Your blood is pumped. It doesn't wander there on its own, and it was never supposed to. The actual mystery is smaller and weirder than the number I gave you. It's not about the trip. It's about the landing. Getting the pea and the carrot to find each other at exactly the right angle, dock, and hold, ten million times a second, without missing, that's the part the lock-and-key model never explains, because a shape sitting still in a textbook diagram doesn't reach out and grab anything. Something has to close that last, tiny gap on purpose. That's the field.

But there's something stranger underneath that, and I have to be honest, it isn't proven. It's speculative, right at the edge of what anyone can currently defend. Still, the science is inching toward the idea that your body might be running a second, faster system underneath the nervous system entirely, not molecules, not even electricity in a wire, but light.

Here's what's actually out there on that front. Living tissue genuinely emits a faint, measurable trickle of light. Nobody disputes that part; the debate is what it means. In 2016 a physicist and a neuroscientist published a detailed theoretical model proposing that myelin, the fatty sheath wrapped around nerve fibers, could act as a literal fiber-optic waveguide, since its refractive index is higher than the tissue around it. They laid out real experiments to test it. Ten years later, nobody's run them. A smaller group of researchers has pushed the same logic into fascia specifically, arguing its liquid-crystal structure lets it carry these signals body-wide, and one recent paper frames the whole myofascial network as something closer to a semiconductor, a second communication layer under the nerves. So the fascia guess isn't just mine, I'm in real company here, just not mainstream company. The wall nobody's gotten past is simple: no one has ever found a confirmed receiver, something in living tissue that catches these photons and does anything with them. Until somebody finds this system's version of the bird's cryptochrome, "the light is a signal" and "the light is just exhaust" are both still standing.

Kathy S-An American in Africa's avatar

Thank you for explaining our living system like that. It infused me with such awe for my body. I will think of your metaphor of tending the flame when I’m fatigued and examine more closely my beliefs now.

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