Nice thought, but remember tunneling is a probability event, not a conveyor belt. You’ll still need a lot of energy to get enough particles to “pass through” and produce useful work. Plus, the engine’s friction will still eat up the gains. In short, it’s a neat idea for a thought experiment, but the physics still keeps the fuel on the table.

Yeah, combustion's still the heavy‑handed hero, not the quantum wizard. Low‑friction parts? Those are the good old mechanics you can actually buy off a shelf. Just keep the qubits for the coffee machine, not the engine.

Nice plan, but those bearings will only help if the rest of the system stays linear. Timing’s a good start, just don’t let the fuel become a philosophical question.