Scientists wired 11 electrodes into a hemp block colonized by oyster mushroom mycelium, fed it every combination of on/off voltage pulses, and watched it spit out structured electrical outputs that matched real digital logic functions. The big one: the NAND gate (the building block all digital circuits can be made from) showed up 145 times, meaning the fungus naturally produces "computationally complete" logic. Even wilder, because the mycelium kept growing and rewiring itself, a single block generated roughly 3,000 distinct input-to-output mappings, the kind of variety a normal chip would need a full redesign to achieve. The fungus did it just by growing.