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Researchers at ETH Zurich have actually shown a method of creating “perfect randomness” by utilizing knotted superconducting qubits.

Producing real randomness is very tough. Even the most advanced standard random number generator can bring small predispositions. While in many daily usages those predispositions are safe, in cryptography — where the security of encrypted systems depends upon unpredictability– even the most subtle pattern can end up being an exploitable weak point.

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