If these were better, those might be quantum computers. Except, you'd need a phononic representation of the signal pre/post ADC and/or better voltage quantizat

If these were better, those might be quantum computers. Except, you'd need a phononic representation of the signal pre/post ADC and/or better voltage quantization. Is this level of component variance the reason we can't do quantum computers with electron charge? Qubit > Physical implementations does list Electron spin and also Electron charge, which ADCs quantize: https://en.wikipedia.org/wiki/Qubit#Physical_implementations https://en.wikipedia.org/wiki/Qubit#Physical_implementations Compared to a $3 ESP32 and a $6 Pico without a RTC Real Time Clock, HiFiBerry DAC ADC Pro has a "Dedicated 192kHz/24bit high-quality Burr-Brown ADC" https://www.hifiberry.com/docs/data-sheets/datasheet-dac-adc-pro/ https://www.hifiberry.com/docs/data-sheets/datasheet-dac-adc... ADC: Analog-to-digital converter: https://en.wikipedia.org/wiki/Analog-to-digital_converter https://en.wikipedia.org/wiki/Analog-to-digital_converter : > In electronics, an analog-to-digital converter (ADC, A/D, or A-to-D) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal. An ADC may also provide an isolated measurement such as an electronic device that converts an analog input voltage or current to a digital number representing the magnitude of the voltage or current. Typically the digital output is a two's complement binary number that is proportional to the input, but there are other possibilities. Integral linearity: https://en.wikipedia.org/wiki/Integral_linearity https://en.wikipedia.org/wiki/Integral_linearity