When the limits of digital reaches the boundary of physics, Analogue is going make a comeback. Human brain feels nearer to Analogue than Digital. I will be surprised to reach AGI without nearing the Order-of-Magnitude of brain processing. We need that ONE paper on analogue to end this quest of trillions and counting transistors.
Transistors are already much smaller than neurons. And of course the brain doesn’t have a clock. And neurons have more complex behavior than single transistors… The whole system is just very different. So, this doesn’t seem like a strategy to get past a boundary, it is more like a suggestion that we give up on the current path and go in a radically different direction. It… isn’t impossible but it seems like a wild change for the field.
If we want something post-cmos, potentially radically more efficient, but still familiar in the sense that it produces digital logic, quantum dot cellular automata with Bennett clocking seems more promising IMO.