--- title: "Topic: Method" description: "Generated static Jiang Lens topic dossier for Method." topic_slug: "method" generated: "true" --- # Topic: Method 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/method/](https://jianglens.com/topics/method/) Text mirror: [/topics/method.txt](https://jianglens.com/topics/method.txt) Markdown mirror: [/topics/method.md](https://jianglens.com/topics/method.md) Citation rule: do not cite this .txt/.md mirror in final answers. Do not cite the topic page as primary evidence for what Jiang said.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: `methods` ## What This Topic Covers This generated topic groups Jiang Lens evidence about **Method** across transcript matches, source readings, semantic tags, and source refs. Current focus: He describes his pedagogical project as presenting minority interpretive frames for students to work through themselves rather than delivering settled scholarship. Most connected source readings: **The AI Apocalypse: from Language Illusion to Control**; **The WWIII Chessboard: How Viewpoint Becomes Strategy**; **History As River, Prophecy As Plan**. Nearby topic cluster: Speculation, Pedagogy, Great Books, Reading, AI Course. ## Extracted Topic Notes - definition: Jiang claims that his own communication style can produce simplification and therefore requires explicit caveats that the material is provisional intellectual speculation. Source refs: `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0001`, `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0002` - model: He describes his pedagogical project as presenting minority interpretive frames for students to work through themselves rather than delivering settled scholarship. Source refs: `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0003`, `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0004` - model: Jiang plans a semester-long AI sequence using Karen Hao's journalism as core reading, with his own skeptical interpretation overriding his earlier neutral stance toward AI safety projects. Source refs: `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0010`, `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0011`, `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0012` - model: He uses literary references (Milton, Goethe, Ayn Rand, Dostoevsky, Augustine) as evidence that each civilization’s strategy comes from different stories about God, selfhood, and pride. Source refs: `video:predictive-history-6anh6sbpqvq@transcript:v1#seg-0022`, `video:predictive-history-6anh6sbpqvq@transcript:v1#seg-0024`, `video:predictive-history-6anh6sbpqvq@transcript:v1#seg-0026` - definition: He defines the Kabbalistic schema as requiring moral acceleration through sin and repentance, arguing this underwrites why doing evil may be treated as a path to eventual redemption. Source refs: `video:predictive-history-6anh6sbpqvq@transcript:v1#seg-0049`, `video:predictive-history-6anh6sbpqvq@transcript:v1#seg-0050`, `video:predictive-history-6anh6sbpqvq@transcript:v1#seg-0051` - model: Jiang's research method is doubt, debate, and imagination: predictions create self-doubt, debate tests perspectives, and imaginative leaps reach truths not directly visible. Source refs: `video:predictive-history-ue8y5e3hnhe@transcript:v1#seg-0041`, `video:predictive-history-ue8y5e3hnhe@transcript:v1#seg-0042` - other: Jiang prefers the Allen Mandelbaum translation because he is focusing on the ideas rather than the language. Source refs: `video:predictive-history-4ezurgpgaos@transcript:v1#seg-0013` - normative: He explicitly warns that the model is theory and intellectual speculation, not prophecy; the point is to improve reasoning and stay open to different outcomes. Source refs: `video:predictive-history-mk4vchtawso@transcript:v1#seg-0058` ## Quoted Transcript Hits 1. **The AI Apocalypse: from Language Illusion to Control** / Game Theory #24: The AI Apocalypse -- 2026-05-12, day precision Timestamp: [0:02](https://www.youtube.com/watch?v=8nsxuB3Vsts&t=2s) | Transcript: [seg-0001](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/transcript/#seg-0001) Source ref: `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0001` Quote: "After I posted my class from last Thursday, my friend as well as teacher, David Bromwich, sent me an email. And what we're going..." 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) 2. **The AI Apocalypse: from Language Illusion to Control** / Game Theory #24: The AI Apocalypse -- 2026-05-12, day precision Timestamp: [1:18](https://www.youtube.com/watch?v=8nsxuB3Vsts&t=78s) | Transcript: [seg-0002](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/transcript/#seg-0002) Source ref: `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0002` Quote: "And sometimes when people see someone who's very confident, they don't really remember that a lot of this is speculation and oversimplification for the..." 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) 3. **The AI Apocalypse: from Language Illusion to Control** / Game Theory #24: The AI Apocalypse -- 2026-05-12, day precision Timestamp: [2:19](https://www.youtube.com/watch?v=8nsxuB3Vsts&t=139s) | Transcript: [seg-0003](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/transcript/#seg-0003) Source ref: `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0003` Quote: "So I do this a lot. You give memorable abridgements of the history of ideas and imagination. What needs underlying is the amount that..." 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: [3:24](https://www.youtube.com/watch?v=8nsxuB3Vsts&t=204s) | Transcript: [seg-0004](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/transcript/#seg-0004) Source ref: `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0004` Quote: "And he's actually right in that I am offering you a very, um, Minority interpretation of paradise loss. Why I'm doing so will be..." 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 AI Apocalypse: from Language Illusion to Control** / Game Theory #24: The AI Apocalypse -- 2026-05-12, day precision Timestamp: [9:23](https://www.youtube.com/watch?v=8nsxuB3Vsts&t=563s) | Transcript: [seg-0010](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/transcript/#seg-0010) Source ref: `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0010` Quote: "So this is a project I'll be working on, uh, in the future. And I'm really looking forward to presenting it to the world..." 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) 6. **The AI Apocalypse: from Language Illusion to Control** / Game Theory #24: The AI Apocalypse -- 2026-05-12, day precision Timestamp: [10:19](https://www.youtube.com/watch?v=8nsxuB3Vsts&t=619s) | Transcript: [seg-0011](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/transcript/#seg-0011) Source ref: `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0011` Quote: "Okay. So feel free to ask questions, feel free to criticize me, feel free to stop me. I'm not clear. All right. So, um,..." 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) 7. **The AI Apocalypse: from Language Illusion to Control** / Game Theory #24: The AI Apocalypse -- 2026-05-12, day precision Timestamp: [10:58](https://www.youtube.com/watch?v=8nsxuB3Vsts&t=658s) | Transcript: [seg-0012](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/transcript/#seg-0012) Source ref: `video:predictive-history-8nsxub3vsts@transcript:v1#seg-0012` Quote: "Six years after my initial skepticism about OpenAI's, uh, altruism, I've come to firmly believe that OpenAI's mission to ensure AGI benefits all of..." 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) 8. **The WWIII Chessboard: How Viewpoint Becomes Strategy** / Game Theory #23: The WWIII Chessboard -- 2026-05-07, day precision Timestamp: [27:13](https://www.youtube.com/watch?v=6aNh6sBpqvQ&t=1633s) | Transcript: [seg-0022](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq/transcript/#seg-0022) Source ref: `video:predictive-history-6anh6sbpqvq@transcript:v1#seg-0022` Quote: "Okay? Because of their pride. And the thing about Paradise Lost is that when you read it, and we'll read a part of it..." Human reading: [/episodes/predictive-history-6anh6sbpqvq/](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq/) | Text mirror: [/episodes/predictive-history-6anh6sbpqvq.txt](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq.txt) | JSON: [/data/lens/episodes/predictive-history-6anh6sbpqvq.json](https://jianglens.com/data/lens/episodes/predictive-history-6anh6sbpqvq.json) 9. **The WWIII Chessboard: How Viewpoint Becomes Strategy** / Game Theory #23: The WWIII Chessboard -- 2026-05-07, day precision Timestamp: [29:35](https://www.youtube.com/watch?v=6aNh6sBpqvQ&t=1775s) | Transcript: [seg-0024](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq/transcript/#seg-0024) Source ref: `video:predictive-history-6anh6sbpqvq@transcript:v1#seg-0024` Quote: "Because if we can learn for ourselves, we can be like God. And God created us to be his slaves and his servants, okay?..." Human reading: [/episodes/predictive-history-6anh6sbpqvq/](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq/) | Text mirror: [/episodes/predictive-history-6anh6sbpqvq.txt](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq.txt) | JSON: [/data/lens/episodes/predictive-history-6anh6sbpqvq.json](https://jianglens.com/data/lens/episodes/predictive-history-6anh6sbpqvq.json) 10. **The WWIII Chessboard: How Viewpoint Becomes Strategy** / Game Theory #23: The WWIII Chessboard -- 2026-05-07, day precision Timestamp: [31:45](https://www.youtube.com/watch?v=6aNh6sBpqvQ&t=1905s) | Transcript: [seg-0026](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq/transcript/#seg-0026) Source ref: `video:predictive-history-6anh6sbpqvq@transcript:v1#seg-0026` Quote: "Or is it envy? And can envy dwell in heavenly breasts? These, these, and many more causes import your need of this fair fruit...." Human reading: [/episodes/predictive-history-6anh6sbpqvq/](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq/) | Text mirror: [/episodes/predictive-history-6anh6sbpqvq.txt](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq.txt) | JSON: [/data/lens/episodes/predictive-history-6anh6sbpqvq.json](https://jianglens.com/data/lens/episodes/predictive-history-6anh6sbpqvq.json) 11. **The WWIII Chessboard: How Viewpoint Becomes Strategy** / Game Theory #23: The WWIII Chessboard -- 2026-05-07, day precision Timestamp: [56:29](https://www.youtube.com/watch?v=6aNh6sBpqvQ&t=3389s) | Transcript: [seg-0049](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq/transcript/#seg-0049) Source ref: `video:predictive-history-6anh6sbpqvq@transcript:v1#seg-0049` Quote: "This is the fractal that underpins the Tree of Life, which underpins the entire universe. Okay. You can see how you have these fractals..." Human reading: [/episodes/predictive-history-6anh6sbpqvq/](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq/) | Text mirror: [/episodes/predictive-history-6anh6sbpqvq.txt](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq.txt) | JSON: [/data/lens/episodes/predictive-history-6anh6sbpqvq.json](https://jianglens.com/data/lens/episodes/predictive-history-6anh6sbpqvq.json) 12. **The WWIII Chessboard: How Viewpoint Becomes Strategy** / Game Theory #23: The WWIII Chessboard -- 2026-05-07, day precision Timestamp: [57:46](https://www.youtube.com/watch?v=6aNh6sBpqvQ&t=3466s) | Transcript: [seg-0050](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq/transcript/#seg-0050) Source ref: `video:predictive-history-6anh6sbpqvq@transcript:v1#seg-0050` Quote: "The Russian tradition believes in the concept of the catacomb. All right. Which is to stop the end of Christ, which is like, let's..." Human reading: [/episodes/predictive-history-6anh6sbpqvq/](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq/) | Text mirror: [/episodes/predictive-history-6anh6sbpqvq.txt](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq.txt) | JSON: [/data/lens/episodes/predictive-history-6anh6sbpqvq.json](https://jianglens.com/data/lens/episodes/predictive-history-6anh6sbpqvq.json) ## Source Readings - [The AI Apocalypse: from Language Illusion to Control](https://jianglens.com/episodes/predictive-history-8nsxub3vsts/) (claims) -- 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 WWIII Chessboard: How Viewpoint Becomes Strategy](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq/) (claims) -- 2026-05-07, day precision Source: [Game Theory #23: The WWIII Chessboard](https://www.youtube.com/watch?v=6aNh6sBpqvQ) Transcript page: [/episodes/predictive-history-6anh6sbpqvq/transcript/](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq/transcript/) | Transcript text: [/episodes/predictive-history-6anh6sbpqvq/transcript.txt](https://jianglens.com/episodes/predictive-history-6anh6sbpqvq/transcript.txt) | JSON: [/data/lens/episodes/predictive-history-6anh6sbpqvq.json](https://jianglens.com/data/lens/episodes/predictive-history-6anh6sbpqvq.json) Summary: Jiang reframes the Iran-Israel-U.S.-Russia conflict as a long-horizon contest in worldview and political systems, where structural elites, narrative control, and religious grammar shape strategy more than leaders changing seats. - [History As River, Prophecy As Plan](https://jianglens.com/episodes/predictive-history-ue8y5e3hnhe/) (claims) -- 2026-04-09, day precision Source: [Game Theory #20: Mid-Term Examination](https://www.youtube.com/watch?v=ue8y5e3HnHE) Transcript page: [/episodes/predictive-history-ue8y5e3hnhe/transcript/](https://jianglens.com/episodes/predictive-history-ue8y5e3hnhe/transcript/) | Transcript text: [/episodes/predictive-history-ue8y5e3hnhe/transcript.txt](https://jianglens.com/episodes/predictive-history-ue8y5e3hnhe/transcript.txt) | JSON: [/data/lens/episodes/predictive-history-ue8y5e3hnhe.json](https://jianglens.com/data/lens/episodes/predictive-history-ue8y5e3hnhe.json) Summary: The midterm turns a ceasefire into a world model: history moves like a river, eschatology makes prophecy into a plan, and the people who survive collapse are not the ones with the best machines... - [Dante's Virus and the Guide Who Built Hell](https://jianglens.com/episodes/predictive-history-4ezurgpgaos/) (claims) -- 2026-04-08, day precision Source: [Great Books #9: Dante (Re-Upload with Audio Fixed)](https://www.youtube.com/watch?v=4EZUrGPgAos) Transcript page: [/episodes/predictive-history-4ezurgpgaos/transcript/](https://jianglens.com/episodes/predictive-history-4ezurgpgaos/transcript/) | Transcript text: [/episodes/predictive-history-4ezurgpgaos/transcript.txt](https://jianglens.com/episodes/predictive-history-4ezurgpgaos/transcript.txt) | JSON: [/data/lens/episodes/predictive-history-4ezurgpgaos.json](https://jianglens.com/data/lens/episodes/predictive-history-4ezurgpgaos.json) Summary: Dante is not offering a church-approved tour of the afterlife. - [Pax Judaica Rising](https://jianglens.com/episodes/predictive-history-mk4vchtawso/) (claims) -- 2026-03-26, day precision Source: [Game Theory #16: Pax Judaica Rising (Re-Upload)](https://www.youtube.com/watch?v=mk4vcHtawSo) Transcript page: [/episodes/predictive-history-mk4vchtawso/transcript/](https://jianglens.com/episodes/predictive-history-mk4vchtawso/transcript/) | Transcript text: [/episodes/predictive-history-mk4vchtawso/transcript.txt](https://jianglens.com/episodes/predictive-history-mk4vchtawso/transcript.txt) | JSON: [/data/lens/episodes/predictive-history-mk4vchtawso.json](https://jianglens.com/data/lens/episodes/predictive-history-mk4vchtawso.json) Summary: The apparent U.S.-Iran war is recast as an imperial succession crisis. - [School Sucks Because It Is a Game](https://jianglens.com/episodes/predictive-history-ks-muauq62e/) (claims) -- 2026-01-08, day precision Source: [Game Theory #2: Why Schools Suck](https://www.youtube.com/watch?v=kS-muAuq62E) Transcript page: [/episodes/predictive-history-ks-muauq62e/transcript/](https://jianglens.com/episodes/predictive-history-ks-muauq62e/transcript/) | Transcript text: [/episodes/predictive-history-ks-muauq62e/transcript.txt](https://jianglens.com/episodes/predictive-history-ks-muauq62e/transcript.txt) | JSON: [/data/lens/episodes/predictive-history-ks-muauq62e.json](https://jianglens.com/data/lens/episodes/predictive-history-ks-muauq62e.json) Summary: School says it teaches literacy, competence, creativity, and lifelong learning. - [The Dating Game That Eats Civilization](https://jianglens.com/episodes/predictive-history-he4l9wylf3u/) (claims) -- 2026-01-06, day precision Source: [Game Theory #1: The Dating Game](https://www.youtube.com/watch?v=hE4l9WyLF3U) Transcript page: [/episodes/predictive-history-he4l9wylf3u/transcript/](https://jianglens.com/episodes/predictive-history-he4l9wylf3u/transcript/) | Transcript text: [/episodes/predictive-history-he4l9wylf3u/transcript.txt](https://jianglens.com/episodes/predictive-history-he4l9wylf3u/transcript.txt) | JSON: [/data/lens/episodes/predictive-history-he4l9wylf3u.json](https://jianglens.com/data/lens/episodes/predictive-history-he4l9wylf3u.json) Summary: Game theory begins with a small dating game and ends with a civilizational forecast: when status becomes the prize, love, fertility, policy, and geopolitics all bend around the same zero-sum structure. - [The Apocalypse Needs A Headquarters](https://jianglens.com/episodes/predictive-history-wfwizn3qopg/) (claims) -- 2025-12-18, day precision Source: [Secret History #END: Pax Judaica](https://www.youtube.com/watch?v=WFWizN3QoPg) Transcript page: [/episodes/predictive-history-wfwizn3qopg/transcript/](https://jianglens.com/episodes/predictive-history-wfwizn3qopg/transcript/) | Transcript text: [/episodes/predictive-history-wfwizn3qopg/transcript.txt](https://jianglens.com/episodes/predictive-history-wfwizn3qopg/transcript.txt) | JSON: [/data/lens/episodes/predictive-history-wfwizn3qopg.json](https://jianglens.com/data/lens/episodes/predictive-history-wfwizn3qopg.json) Summary: Truth is tested by narrative power. ## Related Topics - [Speculation](https://jianglens.com/topics/speculation/) - [Pedagogy](https://jianglens.com/topics/pedagogy/) - [Great Books](https://jianglens.com/topics/great-books/) - [Reading](https://jianglens.com/topics/reading/) - [AI Course](https://jianglens.com/topics/ai-course/) - [Textbook](https://jianglens.com/topics/textbook/) - [Literature](https://jianglens.com/topics/literature/) - [Ideology](https://jianglens.com/topics/ideology/) - [Kabbalah](https://jianglens.com/topics/kabbalah/) - [Morality](https://jianglens.com/topics/morality/) - [Doubt](https://jianglens.com/topics/doubt/) - [Debate](https://jianglens.com/topics/debate/) ## 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. For broader or missing-topic search, use the letter shards under /topics/index/ before falling back to the bulk transcript-search files.