'Remarkably close to the minimum permitted by physics': this superconducting memory bit runs at an estimated 5x the limit, but at -269°C the fridge shrinks its claimed million-fold edge over today’s chips considerably
THE SO WHAT
Memory operating 5x above the physical energy limit sounds like a million-fold gain—until the -269°C refrigeration bill wipes out most of the advantage. For now this stays in the lab; data center and AI infra planners should log it as a long-horizon wildcard, not a near-term path out of power constraints.
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