I had an odd thought while perusing this forum, most things can now be described as a particle or in the case of two waves merging search is electrical and magnetic a photon. But in quantum mechanics you have percentages of states which are generally finite. But when we talk about things like aeronautics we tend to think in terms of analog,but with quantum mechanics it seems that is more towards the digital end of the spectrum. Just throwing it on the wall and see what sticks.

 

It's a question of the macro vs the micro. We see a river flowing downhill as a continuous body of water, but we know that the water is made up of discrete water molecules (as well as molecules of all the other crap in it). At the scale of the river, we can ignore the discrete nature of water. But if we are working with water moving through small enough passages, then at some point our ability to treat it as continuous breaks down and we get completely incorrect results unless we treat it as discrete molecules.

The same thing with lots and lots of other "things".

But the real question is whether EVERY "thing" is quantized if you drill down far enough. I think the jury is still out on that.

 

Likely something completely different from our primitive notions of circuits types.

QM, both analog and digital at the same time.

 

I think you mean continuous vs discrete.

 

The real question is whether angels obey Bose-Einstein statistics (arbitrarily many angels per pin-state), Fermi-Dirac statistics (one angel per pin-state) or statistics where the angels interact nontrivially.