You specifically said "digital" in GGP comment. I took that to mean that you were choosing the abstraction above which those details matter. Yes, at the physical level all circuitry is effectively continuous and stochastic. Analog circuitry is the manipulation of these to give a more continuous state, digital circuitry uses voltage ranges and a forbidden middle to enforce a kind of noise immunity. When you dig deep enough that the noise is a point of concern, you are no longer looking at a digital Boolean.
Just making sure we're being super pedantic.