White & Green Co., Ltd. / Hiroshi Yamada

What Diatoms Teach Us

Scoop up a handful of water from any lake or ocean. Invisible to the naked eye, countless diatoms drift within it — single-celled photosynthetic organisms estimated to produce approximately 20 to 25 percent of the oxygen in Earth’s atmosphere.

The defining feature of diatoms is what surrounds them. Each diatom encloses its entire cell within an intricate shell made of silicon dioxide (SiO₂) — the frustule.

Multiple peer-reviewed studies have confirmed the functions of the frustule. Mechanical protection from physical impact (Nature, 2004). Optical shielding of DNA from ultraviolet radiation (Scientific Reports, 2018). A nanopore filter that selectively excludes harmful particles. Photonic crystal structures that actively manipulate light (Scientific Reports, 2024). The silicon membrane is not merely a shell. It functions as a multifunctional interface.

This raises a question. Why has silicon — of all materials — been chosen so consistently by life as the substance of a protective membrane?

Why Does Nature Choose Silicon?

Silicon is the second most abundant element in Earth’s crust after oxygen. But abundance alone does not explain why life adopted silicon as the material for a membrane.

The frustule of the diatom points toward an answer grounded in silicon’s distinctive physical and chemical properties: thermal stability, chemical inertness, high mechanical strength, and photonic properties that selectively transmit and manipulate specific frequencies of light. No other material combines these properties in the same way.

Nature does not experiment. It selects the material, form, or value that simultaneously satisfies multiple constraints. The diatom’s choice of silicon as a membrane follows the same logic as the fullerene’s convergence on 12 pentagons and a variable number of hexagons. Constraints choose the form.

The Membrane as Interface

The most important function the frustule demonstrates is selective mediation. It does not block the outside world entirely. It passes what is necessary and excludes what is not — manipulating light selectively, filtering particles by size, absorbing mechanical shock.

This is not a wall. It is an interface that mediates between the external world and the interior.

In physical terms, an interface is the boundary between different media — the site where waves of light, sound, and electromagnetic energy are reflected, transmitted, and transformed. The fact that the frustule functions as a photonic crystal, actively shaping the behavior of light, suggests that the silicon membrane operates as a selective mediator of frequency.

Frequency as a Unifying Concept

In ancient Japanese Shinto tradition, there exist concepts known as kotodama (言霊) — the spiritual energy dwelling in words — and kazutama (数霊) — the energy dwelling in numbers. Reframed in contemporary terms, both can be understood as specific patterns of frequency.

If the silicon membrane functions as a selective mediator of frequency, and if kotodama and kazutama are understood as frequency patterns, then the silicon membrane may serve as a mediator for these as well. This is not a scientifically verified proposition. It is an interpretive hypothesis. However, from the perspective of the principle that “frequency selects structure,” a theoretical connection is possible.

The perspective that first suggested this connection comes from Donshū Takahashi, developer of Art-Ten Technology (art-ten.or.jp), whose integrated framework connects quantum theory, consciousness, and the organizing principles of the universe.

Connection to the 270-Year Cycle and 3ⁿ Resonance Theory

The 270-year civilizational transition cycle researched by White & Green is built on the same principle: frequency selects structure.

When 270 years is subjected to recursive division by 3 (3ⁿ decomposition), it produces statistically significant alignment with 12 known natural frequency rhythms — from the orbital period of Saturn to REM sleep cycles, hippocampal ripples, the hydrogen 21-cm line, and visible light (alignment score 8/12, p = 0.0040). The value 270 is a singular point that can simultaneously resonate with multiple natural frequencies.

If the silicon membrane is an interface that selectively mediates frequency across spatial scales, and the 270-year cycle is a temporal structure that resonates with multiple natural frequencies, then both may be expressions of the same underlying principle operating at different scales.

Silicon mediates frequency at a spatial scale. The 270-year cycle resonates with frequency at a temporal scale. The scales differ. But the principle — that frequency selects structure — may be the same.

Questions That Remain Open

Why the diatom chose silicon remains incompletely answered. The relationship between kotodama, kazutama, and the silicon membrane has not yet become a subject of scientific investigation. The interpretation that the silicon membrane and the 270-year cycle share the same underlying principle remains a hypothesis.

And yet the shape of the question is clear.

Why does nature choose silicon? Why does frequency select particular structures? If the same principle operates across scales of space and time — that answer has not yet been written.

This article explicitly distinguishes between scientifically confirmed findings and the author’s interpretive hypotheses. Hypothetical content has not been verified by peer-reviewed research. This article does not predict or guarantee future political, economic, or social events.