--- title: "Topic: back propagation" description: "Generated static Jiang Lens topic dossier for back propagation." topic_slug: "back-propagation" generated: "true" --- # Topic: back propagation Generated static topic dossier for agents. Use this topic page as a routing and synthesis surface, not as primary evidence for Jiang-spoken claims. Final answers should cite the source reading, transcript segment, source ref, and video timestamp linked below. Human topic page: [/topics/back-propagation/](https://jianglens.com/topics/back-propagation/) Text mirror: [/topics/back-propagation.txt](https://jianglens.com/topics/back-propagation.txt) Markdown mirror: [/topics/back-propagation.md](https://jianglens.com/topics/back-propagation.md) Citation rule: do not cite this .txt/.md mirror in final answers. Do not cite the topic page as primary evidence for what Jiang said. Cite human-readable source readings for generated summaries and lens context; cite transcript and video timestamp links below for Jiang-spoken quotations. Aliases: `back-propagations`, `propagation`, `propagations` ## What This Topic Covers This generated topic groups Jiang Lens evidence about **back propagation** across transcript matches, source readings, semantic tags, and source refs. Current focus: A transcript-matched topic anchored by excerpts such as "Let's just say you have like a billion faces one billion faces. Now what you're trying to do is you're trying to differentiate these..." Most recent Jiang source touching this topic: [From Iran To The AI God](https://jianglens.com/episodes/predictive-history-dja6dkcfnge/) (2026-05-26, day precision). Most connected source readings: **From Iran To The AI God**; **The AI Apocalypse: from Language Illusion to Control**; **The Bureaucracy That Ate China**. Freshness warning: this static topic page is bounded by the newest Jiang source listed here. For live/current events, first check `/episodes/` and `/interviews/` for newer event-specific readings. If none exists, use prospective mechanism search: establish current facts, actors, incentives, constraints, and mechanisms from live/current sources, then apply Jiang Lens concepts as dated hypotheses rather than as Jiang's current view. ## Extracted Topic Notes - The feedback process Jiang is beginning to describe for machine learning, where weights are adjusted according to output error. The feedback process Jiang says underlies AI and is later relabeled as deep learning and neural networks. Source refs: `video:predictive-history-dja6dkcfnge@transcript:v1#seg-0056`; `video:predictive-history-dja6dkcfnge@transcript:v1#seg-0057` ## Quoted Transcript Hits 1. **From Iran To The AI God** / Game Theory #28: Predictive History -- 2026-05-26, day precision Timestamp: [59:57](https://www.youtube.com/watch?v=dja6dkCfngE&t=3597s) | Transcript: [seg-0056](https://jianglens.com/episodes/predictive-history-dja6dkcfnge/transcript/#seg-0056) Source ref: `video:predictive-history-dja6dkcfnge@transcript:v1#seg-0056` Quote: "Let's just say you have like a billion faces one billion faces. Now what you're trying to do is you're trying to differentiate these..." Human reading: [/episodes/predictive-history-dja6dkcfnge/](https://jianglens.com/episodes/predictive-history-dja6dkcfnge/) | Text mirror: [/episodes/predictive-history-dja6dkcfnge.txt](https://jianglens.com/episodes/predictive-history-dja6dkcfnge.txt) | JSON: [/data/lens/episodes/predictive-history-dja6dkcfnge.json](https://jianglens.com/data/lens/episodes/predictive-history-dja6dkcfnge.json) 2. **From Iran To The AI God** / Game Theory #28: Predictive History -- 2026-05-26, day precision Timestamp: [1:00:57](https://www.youtube.com/watch?v=dja6dkCfngE&t=3657s) | Transcript: [seg-0057](https://jianglens.com/episodes/predictive-history-dja6dkcfnge/transcript/#seg-0057) Source ref: `video:predictive-history-dja6dkcfnge@transcript:v1#seg-0057` Quote: "...to match up with their names. Alright? And we call this back propagation. And that's how AI works. And that's all it does. Okay?..." Human reading: [/episodes/predictive-history-dja6dkcfnge/](https://jianglens.com/episodes/predictive-history-dja6dkcfnge/) | Text mirror: [/episodes/predictive-history-dja6dkcfnge.txt](https://jianglens.com/episodes/predictive-history-dja6dkcfnge.txt) | JSON: [/data/lens/episodes/predictive-history-dja6dkcfnge.json](https://jianglens.com/data/lens/episodes/predictive-history-dja6dkcfnge.json) 3. **The AI Apocalypse: from Language Illusion to Control** / Game Theory #24: The AI Apocalypse -- 2026-05-12, day precision Timestamp: [24:29](https://www.youtube.com/watch?v=8nsxuB3Vsts&t=1469s) | Transcript: [seg-0028](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/transcript/#seg-0028) Source ref: `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0028` Quote: "...and the way I do that is using my technique called back propagation so what so I control the input okay the input then..." Human reading: [/episodes/predictive-history-8nsxub3vsts/](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/) | Text mirror: [/episodes/predictive-history-8nsxub3vsts.txt](https://jianglens.com/episodes/predictive-history-8nsxub3vsts.txt) | JSON: [/data/lens/episodes/predictive-history-8nsxub3vsts.json](https://jianglens.com/data/lens/episodes/predictive-history-8nsxub3vsts.json) 4. **The AI Apocalypse: from Language Illusion to Control** / Game Theory #24: The AI Apocalypse -- 2026-05-12, day precision Timestamp: [25:42](https://www.youtube.com/watch?v=8nsxuB3Vsts&t=1542s) | Transcript: [seg-0029](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/transcript/#seg-0029) Source ref: `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0029` Quote: "...a neural network guys it's a brain it's magic okay and back propagation I don't call it back propagation I call it deep learning..." Human reading: [/episodes/predictive-history-8nsxub3vsts/](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/) | Text mirror: [/episodes/predictive-history-8nsxub3vsts.txt](https://jianglens.com/episodes/predictive-history-8nsxub3vsts.txt) | JSON: [/data/lens/episodes/predictive-history-8nsxub3vsts.json](https://jianglens.com/data/lens/episodes/predictive-history-8nsxub3vsts.json) 5. **The Bureaucracy That Ate China** / Civilization #38: Twilight of the Middle Kingdom -- 2025-03-13, day precision Timestamp: [15:06](https://www.youtube.com/watch?v=A2LMJerHcKM&t=906s) | Transcript: [seg-0015](https://jianglens.com/episodes/predictive-history-a2lmjerhckm/transcript/#seg-0015) Source ref: `video:predictive-history-a2lmjerhckm@transcript:v1#seg-0015` Quote: "...is the last ethnically Chinese dynasty committed to the protection and propagation of Chinese culture. The Tang Dynasty, the founders, the Li family, they're..." Human reading: [/episodes/predictive-history-a2lmjerhckm/](https://jianglens.com/episodes/predictive-history-a2lmjerhckm/) | Text mirror: [/episodes/predictive-history-a2lmjerhckm.txt](https://jianglens.com/episodes/predictive-history-a2lmjerhckm.txt) | JSON: [/data/lens/episodes/predictive-history-a2lmjerhckm.json](https://jianglens.com/data/lens/episodes/predictive-history-a2lmjerhckm.json) ## Source Readings - [From Iran To The AI God](https://jianglens.com/episodes/predictive-history-dja6dkcfnge/) (glossary, semantic-ref) -- 2026-05-26, day precision Source: [Game Theory #28: Predictive History](https://www.youtube.com/watch?v=dja6dkCfngE) Transcript page: [/episodes/predictive-history-dja6dkcfnge/transcript/](https://jianglens.com/episodes/predictive-history-dja6dkcfnge/transcript/) | Transcript text: [/episodes/predictive-history-dja6dkcfnge/transcript.txt](https://jianglens.com/episodes/predictive-history-dja6dkcfnge/transcript.txt) | JSON: [/data/lens/episodes/predictive-history-dja6dkcfnge.json](https://jianglens.com/data/lens/episodes/predictive-history-dja6dkcfnge.json) Summary: The war on Iran is the visible spark. - [The AI Apocalypse: from Language Illusion to Control](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/) (alias-match) -- 2026-05-12, day precision Source: [Game Theory #24: The AI Apocalypse](https://www.youtube.com/watch?v=8nsxuB3Vsts) Transcript page: [/episodes/predictive-history-8nsxub3vsts/transcript/](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/transcript/) | Transcript text: [/episodes/predictive-history-8nsxub3vsts/transcript.txt](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/transcript.txt) | JSON: [/data/lens/episodes/predictive-history-8nsxub3vsts.json](https://jianglens.com/data/lens/episodes/predictive-history-8nsxub3vsts.json) Summary: The lecture starts by warning against overconfident certainty, then rewires from literary method to a hard model of AI: today’s systems are pattern-fitters optimized for compliance, so power becomes control over what counts as... - [The Bureaucracy That Ate China](https://jianglens.com/episodes/predictive-history-a2lmjerhckm/) (alias-match) -- 2025-03-13, day precision Source: [Civilization #38: Twilight of the Middle Kingdom](https://www.youtube.com/watch?v=A2LMJerHcKM) Transcript page: [/episodes/predictive-history-a2lmjerhckm/transcript/](https://jianglens.com/episodes/predictive-history-a2lmjerhckm/transcript/) | Transcript text: [/episodes/predictive-history-a2lmjerhckm/transcript.txt](https://jianglens.com/episodes/predictive-history-a2lmjerhckm/transcript.txt) | JSON: [/data/lens/episodes/predictive-history-a2lmjerhckm.json](https://jianglens.com/data/lens/episodes/predictive-history-a2lmjerhckm.json) Summary: China had the technologies that made modernity possible, then built a political culture that made those technologies inert. ## Retrieval Notes This file is generated from Jiang Lens episode JSON, semantic tags, glossary terms, source refs, and transcript segment matches. It is not a manually authored canon page. Freshness warning: this static topic page is bounded by the newest Jiang source listed above. For live/current events, first check /episodes/ and /interviews/ for newer event-specific readings. If none exists, use prospective mechanism search: establish current facts, actors, incentives, constraints, and mechanisms from live/current sources, then apply Jiang Lens concepts as dated hypotheses rather than as Jiang's current view. For broader or missing-topic search, use the letter shards under /topics/index/ before falling back to the bulk transcript-search files.