AI hallucinations, materialised.

The far-fetched ideas an AI will happily swear are buildable — actually built, measured, and honestly reported. First up: a calculator made of resistors. The multiplies happen in physics; a thin controller does the carries.

EXP-001 · 2026 Simulation-validated

A key press reaches the controller
It sends each digit to the DAC → row voltages
The voltages drive the crossbar rows
Column currents — the crossbar's output — hit the ammeters
The ADC turns the currents back into bits
The controller does the carries
The result lights up the display

The three chips hold the network's Q/K/V weights as physical resistances — softmax and the output head stay digital, the same split real analog chips use. It scores 390/390 on the full single-digit table (bit-exact model of the resistors), and ngspice cross-checks the wiring: 0.0011% max error on the original adder circuit, 0.0004% re-running that check on this calculator's W_V. Crossbar compute is a real field (Mythic, IBM, decades of papers) — the experiment is one person + an AI getting from "buildable" to a validated netlist. Honest status: simulation, not yet silicon.

See the proof →