It's not like the resistors are a component that is explicitly added. Every conductor has some resistance - the tiny wires that connect transistors together, th

It's not like the resistors are a component that is explicitly added. Every conductor has some resistance - the tiny wires that connect transistors together, the transistor itself, etc. Ideally, yes, you want those resistances to be as low as possible. But in practice there are design trade offs that happen if you do so; it's a balancing act. As the other commenter mentioned, there are no superconducting semiconductors, so the transistor is out. There has been some research into super conductors for the wires, but for the time being there is nothing that's easily integrated into existing manufacturing processes. Re: channeling electrons - what you've described doesn't quite make sense. Fundamentally, if you're taking an electron at ground or 0V potential, and changing it's potential to VCC, it requires energy that comes from somewhere. The battery (or power supply) is doing exactly that. As the electrons flow back to the ground, the battery "recharges" them up to VCC potential. What you can do, though, is put circuits in series between supply and ground. That way the electrons flow through the "top" circuit, do their thing, then flow through the "bottom" circuit. There's no free lunch though, as the voltage across each circuit will be reduced. Nonetheless, this is a common technique for low power analog circuits, and one I've used in the past. It's just not practical or worth it in digital circuits like a CPU.