Learn quantum, one plain idea at a time
Explainers for beginners, reality checks on the news, and the security side that matters to banks and businesses.
What is a qubit, really?
Coins, dimmer switches and why "both at once" is only half the story.
Superposition without the hype
What it means to hold possibilities, and why you never get to see them directly.
Entanglement in one coffee
Two qubits that answer together, and what that can and can't do.
What quantum computers are good at (and what they aren't)
Chemistry, materials, factoring and finance. Plus the long list of things they won't speed up.
Why qubits are so fragile
Noise, error correction, and why one useful qubit may need hundreds of physical ones.
How to read a "quantum breakthrough" headline
Five questions to ask before you believe the press release, with real examples.
Why your bank is already preparing
The encryption problem, "harvest now, decrypt later", and the new standards replacing today's locks.
"Harvest now, decrypt later," explained
Why data stolen today can become readable tomorrow, and who should worry.
Post-quantum cryptography for non-engineers
What ML-KEM and ML-DSA are in one sentence each, and what changes for your organisation.