Science
Quantum Computers Explained
Quantum Computers Are Finally Learning Not to Forget How the strangest rules of physics became a new kind of computer — and why the race now depends less on raw qubit counts than on something much harder: keeping information alive Quantum computers look futuristic, but their biggest challenge is surprisingly ordinary: keeping fragile quantum information alive long enough to complete a useful calculation. The quantum-computing race has spent years teaching us to watch the wrong number. We count qubits because the number is easy to understand: 100 sounds better than 50, 1,000 better than 100. But a machine can contain hundreds or even thousands of qubits and still fail at the moment that matters, because the information disappears before the calculation is finished. The real challenge is not simply to make a quantum computer bigger. It is to make one that can remember what it is doing. That is less cinematic than headlines about quantum supremacy...
9/29/2026 11:46:00 AM
