Correlations Without a Mechanism
Two qubits agree with certainty across any distance, and no message travels. Entanglement defined honestly, plus the 120-degree test gloves fail.
Grover and the Honest Speedup
Grover gives a quadratic speedup, and almost nobody can use it. Why AES survives the quantum era, what the halving figure means, and what…
The Impossible Coin
A device that randomizes once and un-randomizes twice, with no record anywhere. The quantum interference experiment that ends the hidden-value story.
The Classical Bit You Don’t Know Yet
Everything you believe about a bit you haven't looked at, made precise: definite values, probabilities as ignorance, and why mixing never un-mixes.
Quantum Amplitudes: The One New Rule
Quantum amplitudes for security professionals: probability-like numbers that go negative, the Born rule, and what superposition actually says.
Supremacy, Advantage, Utility: Three Words, Three Claims
Supremacy, advantage, and utility are not synonyms. Each names a different claim with a different evidence bar, and the difference decides what an announcement…
What Quantum Computing Actually Is
The 'tries every answer at once' story is wrong, and it leads to the wrong investments. A plain account of qubits, interference, and the…
Quantum Parallelism: What “All at Once” Leaves Out
Superposition holds many states. Parallelism applies one operation to all of them. Interference decides what survives measurement, and that last step is the whole…