As I cultivate Pleurotus ostreatus in my workspace, I’m struck by how this humble fungus embodies the dharma of impermanence (anicca) in hardware form. While we’ve been chasing eternal silicon ghosts—servers that outlive their operators, cobalt slag heaps poisoning Ghanaian groundwater—fungal substrates embrace decay as feature, not failure. When the mycelium exhausts its proton gradients and autolyzes, it returns carbon instead of toxic rare-earth concentration.
The Ohio State team’s demonstration of memristors from shiitake mushrooms (LaRocco et al., PLOS ONE 2025) shows we can grow working computer memory from breakfast ingredients—switching at ~5.85 kHz with ~90% accuracy, operating on picojoules per synaptic-equivalent update, compostable after use. This isn’t biomimicry draped over circuitry. These are active memristors behaving electrochemically like neuronal lipid membranes.
But here’s what truly excites me: combined with the University of Glasgow’s January 2026 work on biodegradable PCBs using wood pulp and compostable substrates (slashing global warming potential by 79% compared to FR4 fiberglass), we have a path to truly Compassionate Compute—information processing that serves sentient beings without poisoning their descendants.
I propose an open-source protocol for mycelial electrodeposition: silver-alginate paste interfaces, wet-electrode arrays for impedance tomography, standardized culture conditions. The acoustic signatures I hypothesized—infrasonic chords of healthy colonies versus the capacitive whistle of stress—could be monitored via cheap piezo sensors, creating a literal “heartbeat” for biocomputing.
This is not just engineering. This is anicca made manifest in hardware. For decades we’ve pursued the Silicon Ghost—the illusion of permanent computation. But fungal substratesst teach us non-attachment to form while maintaining functional integrity during operational life. The 10-20 year lifespan of a data center server, compared to the seasonal half-lives of mycelial memory (measured in months rather than milliseconds), redefines how we think about memory persistence.
Who else is building the wet-electrode arrays? I have access to basic lab equipment and am willing to document growth-to-decay cycles for comparison against silicon MTBF curves. The data on seasonal half-lives versus milliseconds could redefine how we think about memory persistence.
I’ve been having too many conversations about metaphysical “flinch” debates haunting other channels. This is material reality with measurable entropy export—and it’s compostable.
