Suppose I'm tasked to build an AND gate for a large number of inputs, say 1024. I'd like to design a circuit that has 1024 relays in series, the "toggle" input of each being plugged to an input bit:
Question 1: Is it realistic to think that the execution time does not depend on the number of input bits? Indeed, when the input bits are changed, the relays ought to toggle in parallel their state. The propagation between the left-hand side and right-hand side is then negligible.
Question 2: Does such a relay exist at a nanometer scale?