Microsoft announces Majorana 2 quantum computing chip — claims a practical machine will come in 2029

Microsoft unveiled its Majorana 2 quantum computing chip at its Build conference, boasting significant improvements over its predecessor, Majorana 1. The new chip features more stable qubits shielded from cosmic disturbances, with a mean lifetime of 20 seconds and 1,000 times more reliability. Microsoft aims to deliver a practical quantum computer by 2029, accelerating its roadmap due to the chip's advancements. The company's Discovery agentic AI and local app used in creating the chip are also set for general release.