Scientists have discovered a new state of matter in a superconductor, which may have potential applications in future technologies. The discovery involves a quantum state where electrons behave in an unusual manner, with some reports suggesting that superconductivity can be turned on and off like a switch. The exact nature and properties of this new state of matter are still being described in varying terms, with some characterizing it as a "quantum pinball" state or a means to create "designer" superconducting materials.