How the atomic bomb became possible
Author’s claim. Posted before Fable 5.2 came out. The author called it Fable 5.5, the name rumors gave the next Fable. We can’t verify which model ran.
A three-minute 3D film on the science and history that made the atomic bomb possible. The author says that, lacking a 3D library, it wrote its own renderer and produced 5,400 frames plus a soundtrack.
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Our note
Titled "How the Bomb Became Possible" and subtitled "A 3D reconstruction", this history film runs through six numbered chapters: "The Atom" in Berlin, 1938; "The Chain Reaction", 1939; "The First Reactor" in Chicago, 1942, with Chicago Pile-1 as a lattice of stacked blocks; "Three Secret Cities", with a map of the United States and glowing sites at Oak Ridge and Hanford; "Two Designs"; and "Trinity", July 16, 1945, where a cloud rises over a desert. Captions name General Leslie Groves and Robert Oppenheimer. A closing card counts six and a half years and nearly 130,000 people. The home-made renderer is the author's account; no prompt was shared.
Written by The Frontier Brief after watching the video (Nov 5, 2026). It describes what is on screen; we have not run the work ourselves.
Prompt
Not known. We have not found a prompt published by the author.
What we know
- Model
- Listed under Fable 5.2. The author wrote Claude Fable 5.5 (author’s claim)
- What we checked
- From the open awesome-fable5-5-videos list (MIT, Copyright (c) 2026 yihui-dev). On Oct 31, 2026 the post was still live on X; which model actually ran is the author’s claim.
Video from @imjustnewatai’s post on X, credited to the author. Want it taken down? Email support@fable5.app.
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