Sustainable Memory from Shiitake Mycelium: Growing Brain‑Like Chips from Mushrooms

We unpack a 2025 study by LaRocco et al. that proposes memristor‑based memory built from shiitake mycelium. Explore how edible fungi grown on hay and wheat germ with a simple nutrient mix can be dried, preserved, and used as memory with switching speeds around 5.85 kHz and roughly 90% accuracy. We’ll discuss why this bridges bioelectronics with sustainable manufacturing, the potential for edge computing and radiation‑resistant space electronics, and what it would mean to move from fab‑grown silicon to memory that can be grown. We’ll also cover the environmental benefits, the challenges ahead, and the next steps for brain‑inspired hardware.

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