ORNL Paper: Useful Quantum Computing Needs 4M Qubits and 800 Square Meters
anirbanbandyo · x · 2026-11-04
Citing an Oak Ridge National Laboratory paper in Renewable and Sustainable Energy Transition, demonstrating practical quantum computing use cases would require 4 million qubits spanning 800 m², with substantial energy and resource impacts — leading the author to conclude qubit-based quantum computing may never become practical.
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