“The metric that we need to keep an eye on is the number of qubits,” Simone Severini, Amazon Web Services’ director of Quantum Technologies, tells Bloomberg Intelligence senior technology analyst Anurag Rana. Also important “is the quality of the qubits and the way people try to scale,” he says. On this episode of Tech Disruptors, Severini and Rana discuss the basics of quantum computing and how qubits differentiate themselves from their classical counterparts. Additionally, the two go over several potential use cases for the technology and the time line to fault tolerance.