A quantum computer has achieved unconditional superiority over classical machines by solving tasks impossible for conventional systems. Using 12 qubits, researchers demonstrated real-world memory advantages that could revolutionize cryptography, modeling, and computational science.A quantum computer has achieved unconditional superiority over classical machines by solving tasks impossible for conventional systems. Using 12 qubits, researchers demonstrated real-world memory advantages that could revolutionize cryptography, modeling, and computational science.