Ignoring for the moment that transistors and synapses are very different in their function, the current in a CPU transistor is in the milliampere range... That

Ignoring for the moment that transistors and synapses are very different in their function, the current in a CPU transistor is in the milliampere range... That seems implausible. Apple's M2 has 20 billion transistors and draws 15 watts at full power [1]. Even assuming that 90% of those transistors are for cache and not logic, that would still be 2 billion logic transistors * 1 milliampere = 2 million amperes at full power. That would imply a voltage of 7.5 microvolts, which is far too low for silicon transistors. [1] https://www.anandtech.com/show/17431/apple-announces-m2-soc-apple-silicon-updated-for-2022 https://www.anandtech.com/show/17431/apple-announces-m2-soc-...