There isn't yet a roadmap to show Microsoft can scale its chip to the million topological qubits required to make a working quantum computer.

Microsoft said they created a computer chip that uses a new state of matter that will be capable of running the most powerful computers ever — a potential breakthrough for quantum computing that many believed was decades away.

Microsoft has long been working on an alternative that could cut down on the overhead by using components that are far more stable. These components, called Majorana quasiparticles, are not real particles. Instead, they are special patterns of behavior that may arise inside certain physical systems and under certain conditions.