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This article spotlights PsiQuantum’s ambitious shift from chip‑based superconductors to a room‑scale photonic architecture that could host millions of low‑error qubits by leveraging ultra‑cold, fiber‑linked optical modules. By marrying silicon photonics with cryogenic cooling, the plan directly tackles the scaling bottleneck that has limited most current quantum processors and aligns with recent advances in error‑corrected photonic gates demonstrated by academic groups. If the engineering hurdles of massive helium distribution and high‑throughput photon routing can be mastered, the approach could accelerate the timeline for practical, fault‑tolerant quantum advantage across chemistry, optimization, and materials science.