[echoangle]

If we want to be really pedantic, a computer does not necessarily need to be digital. You could build a consciousness-coprocessor with analog circuitry that brings in what you say could be needed.

But honestly I doubt that there is a real requirement for that, surely you could just increase the resolution you're running the simulation at until the difference decreases sufficiently. Imagine using 256 bit floats for example.

[nomel]

IBM has made a few analog chips like this [1]. If I remember correctly, one was even pulse time based, like neurons.

https://research.ibm.com/blog/analog-ai-chip-inference