Microsoft's Quantum Chip Claim

The Majorana 2 quantum processor is built from topological qubits, and its creators claim it can sustain quantum coherence for an average of 20 seconds — orders of magnitude longer than the milliseconds that conventional chips last.

1. Frame 1Microsoft says Majorana 2 keeps fragile chip qubits stable for 20 seconds, raising pressure on quantum-computer timelines.
2. Frame 2Topological qubits are the error-control layer, protecting quantum information as calculation time turns into a usable resource.
3. Frame 3The benchmark raises the threshold from milliseconds on Majorana 1 to an average 20 seconds on Majorana 2.
4. Frame 4The bottleneck is scale: Microsoft says useful machines need millions of qubits, while this chip has 12.
5. Frame 5A review gap limits outside assessment because Microsoft withheld full discovery details, citing commercial confidentiality.
6. Frame 6The 2029 target depends on peer scrutiny, scaling work, and demonstrations that solve commercially useful problems.