Hey everyone. It's summer, and I'm thinking, mostly about superconductors for some reason, and I have a question. For this, I'm going to pretend we have a room temperature superconductor pulled into a wire (I know, doesn't exist, but just thinking here). If a DC voltage was applied to a circuit with 0 ohms of resistance, the amps would be huge right? The way I figure it, the electron flow speed would only be limited by Relativity, that is, by the speed of light. (Stop me any time if I'm wrong about something). But with a voltage continuing to accelerate the electrons to higher and higher speeds, eventually they'll near c and then start to gain mass, right? And I don't see how this mass gain would be limited, so after enough time, the mass would be very large, and I don't see what would prevent it from collapsing into a black hole or something of the like (ok, maybe not a black hole, but collapsing due to its gravity). This seems wrong (maybe because I'm assuming room temperature superconducting wire). Can anyone tell me where I'm a skew?