Sources: ETH Zürich [press release], PNAS [abstract]
quote: I've never called this circuit "digital".
quote: My point is that it does not make sense to call any circuit "digital", "analog", or "mixed signal" until you know what kind of signal flows through the circuit.
quote: That's why I disagreed with your original statement that this circuit can't be digital just because it has a capacitor.
quote: Your argument about a black box is not relevant, because I am looking inside the circuit.
quote: "If I am looking inside a DRAM cell, and the signal there appears digital, from my perspective, then the DRAM cell is a digital circuit to me."
quote: What's relevant here is, again, the nature of the signal, not the design of a circuit.
quote: Do you see my point?
quote: Just to be clear, what is your definition of a digital or analog circuit?