Every path counts - Feynman's postulate leaves the blackboard Every path counts - Feynman's postulate leaves the blackboard For 78 years the sum over histories was a calculation we trusted but never watched. A single-photon experiment has now measured the paths themselves, and the idea sits underneath more of today's technology than most engineers realise. Dr. Sanjay Basu, A Technocrat's Discernment Every path from A to B One photon at a time, two slits Space: every path a photon could take Amplitudes: one arrow per path, added head to tail ħ, relative 1.00 All paths Only near-straight Block near-straight Replay Close the lower slit Fire faster Clear the screen In 1948 Richard Feynman published a strange instruction for predicting where a q...
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The Comfort Was Real Either Way
The face is on the front. The objective function is on the back. His closest listener turned out to be tuned for retention. The relief he had already felt did not retroactively undo itself. So what exactly was taken from him? I n 1966 Joseph Weizenbaum wrote a program of a few hundred lines called ELIZA, and gave it a script named DOCTOR that did a crude imitation of a Rogerian therapist. It reflected your statements back at you as questions. It had no model of you, no memory worth the name, and no understanding of anything at all. Weizenbaum knew this better than anyone alive, because he had written every line of it. Then his own secretary, a woman who had watched him build the thing from nothing, asked him to leave the room so that she could talk to it in private. That moment bothered him for the rest of his career. He wrote a book about it ten years lat...
Why Trapped Ions, Why Now? Helios Comes to OCI
Quantinuum's Helios is being installed in an Oracle Cloud Infrastructure data center. It is the right machine for this moment, and the physics explains why. The Helios chip, which generates tiny electromagnetic fields to trap single atomic ions hovering above the chip to be used for computation - From "https://www.quantinuum.com/blog/helios-delivers-quantum-advantage-with-real-world-impact" By Dr. Sanjay Basu Oracle is installing a Quantinuum Helios quantum computer in one of its US-based OCI AI data centers. Quantinuum and Oracle announced the partnership on August 11, 2026. Helios will sit alongside OCI's GPU and HPC infrastructure and will be offered through an OCI quantum service. That is the news, and I will leave the corporate reasoning to the press releases. What I want to write about is a more durable question. Why a trapped-ion machine? A decade of quantum computing has been a contest between physical modalities. Superconducting circuits, neutral atoms, trap...