Microsoft’s new “topological qubit” is not based on a solid, liquid or gas. It is another phase of matter that many experts did not think was possible.

Microsoft has announced a significant breakthrough in quantum computing: the creation of the first "topological qubits." Unlike conventional quantum bits, these qubits store information using an exotic state of matter.

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.