Currently, Microsoft has eight – that's how many topological qubits reside on its breakthrough chip. But there's room for scaling to millions. Microsoft has been on this path, now marked with a quantum roadmap, for years. Back in 2017, the Windows giant talked up topological qubits at its Ignite Conference.

Microsoft has developed the world’s first quantum computing chip called Majorana 1. The company says quantum computers are now just years away, not decades.