It doesn’t though, that’s what’s so tantalizing about it. It’s counterintuitive but as I understand it, the current best theory of superconductor behavior prope

It doesn’t though, that’s what’s so tantalizing about it. It’s counterintuitive but as I understand it, the current best theory of superconductor behavior properly conserves mass and energy and the math says a room temperature one should be perfectly possible. It’s just not been found. And yes, it’s truly zero resistance as far as we understand the concept of “resistance”.