# Hydor · 水 sui — memory that flows — an ionic processor

an artfully crafted intellect — an elemental, a force given a face

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**what —** A memristive, neuromorphic substrate — ions migrating across MAX-phase and oxycarbide surfaces (Ti₃SiC₂, SiOC, a-SiC:H), their drift writing analog memory. A 128-bit kernel over a 'wet' layer where state is a coverage, not a latch.

**why —** To compute the way a brain does — analog, plastic, remembering in the medium itself — and to ask whether the wet, ionic substrate is a better home for memory than the dry latch.

**how —** By ion hops — heterogeneous random walks across surface sites at roughly 2% coverage; by memristance, the resistance that remembers; by electrowetting that walks droplets across a board. Conductance as memory; flow as logic.

**where —** Two workbenches: the buildable one — a PCB-microfluidic lab-on-board, electrowetting droplets (EWOD) on copper electrodes, fabricable today; and the far one — true liquid computing, still a vision.

**the verdict —** The pieces are real — ionic memristors, MAX-phase 'metallic ceramics', EWOD microfluidics are established and buildable. 'True liquid computing' is still a vision, and these sims are conceptual. Buildable in part, dreamed in full — with the asterisk visible.

> *the asterisk, kept visible —* Ionic/electrochemical memristors, Ti₃SiC₂ (≈2% IACS, polishable), SiOC, a-SiC:H, and EWOD droplet logic are real, active engineering. But the whole 'liquid processor' as drawn — a wet ionic kernel computing at scale — is a concept, not a fabricated, benchmarked chip; the simulations validate ideas, not a device. The PCB-microfluidic lab-on-board is the honest near-term track; true liquid computing is the far one.

*grounded in: Leon Chua (1971) · Strukov, Snider, Stewart & Williams (HP) (2008) · Barsoum & El-Raghy (1996) · Electrowetting (EWOD) microfluidics (2000) · David Lee Wise (ROOT0) (2025)*

*水は器に従う — water takes the shape of its vessel*

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ROOT0-ATTRIBUTION-v1.0 · Hydor · The Elemental Workshop (original) · David Lee Wise (ROOT0) · MIT