# mmguo.dev > Personal website of Lingbo Guo, known as 秒秒Guo on Xiaohongshu (63K+ followers) and mmguo on X and Douyin. AI entrepreneur and product interaction designer based in Beijing. Her AI product demos and deep writings on prompt engineering have reached 5M+ reads and tens of millions of impressions across Chinese social media, attracting a large following of senior knowledge workers. This site hosts her learning resources, original prompts, deep essays on AI-human collaboration, and interactive AI product prototypes. ## Author - Name: Lingbo Guo (郭灵波) - Known as: 秒秒Guo (Xiaohongshu), mmguo (X, Douyin) - Role: AI Entrepreneur & Product Interaction Designer - Location: Beijing, China - Email: lingbo0115@gmail.com - Xiaohongshu: 63K+ followers — https://www.xiaohongshu.com/user/profile/55a508e8c2bdeb432f5763e2 - Website: https://mmguo.dev - Languages: Chinese (native), English ## Site Structure - Homepage: https://mmguo.dev/ - Writings (5 bilingual articles): /writings/{slug}/index.html - Prompts (3 bilingual prompt pages): /prompts/{slug}/index.html - Projects (2 interactive apps): /rain, /clawd - All article and prompt pages support ?lang=en and ?lang=zh URL parameters - Structured data: JSON-LD on every page (Article, CreativeWork, WebApplication, WebSite, Person, ItemList) - Sitemap: https://mmguo.dev/sitemap.xml - Robots: https://mmguo.dev/robots.txt ## Writings - [Ilya Sutskever list](https://mmguo.dev/writings/ilya/index.html): Curated collection of 8 Ilya Sutskever interviews (Lex Fridman, Stanford HAI, TED, NIPS 2015, Dwarkesh Podcast x2, No Priors, Jensen Huang) and his 30 Under 30 reading list. Key quotes on next-token prediction as understanding underlying reality, unsupervised learning as the key to AGI, and the aesthetics of AI research. Published 2026-04-02. - [Multithreaded + Deep Focus: A New Kind of AI-Native Human](https://mmguo.dev/writings/ai-native-multithreaded/index.html): Analysis of the cognitive demands of AI-augmented work — why multithreading and deep focus are in tension, and what kind of human the AI era selects for. Introduces "context engineering" as the new meta-skill and the two irreducible human roles (Manager + Executor). Published 2026-03-28. - [Boundary Definition Method](https://mmguo.dev/writings/boundary-method/index.html): A "Scene-Tension-Output" prompt framework for finding highly personalized, niche needs through AI. Includes 6 example prompts and analysis of Amanda Askell's recursive prompt thinking. Published 2026-03-22. - [Fingerprints of Reality](https://mmguo.dev/writings/fingerprint-of-reality/index.html): How good prompts translate subjective human intuition into concrete patterns that AI can recognize. Uses a viral ChatGPT "mundane iPhone photo" prompt as a case study. Three-step method: Define effect → Deconstruct features → Combine patterns. Published 2025-10-21. - [The Self-Referentiality of Meaning](https://mmguo.dev/writings/self-referentiality-of-meaning/index.html): A philosophical exploration of why "meaning" is the most self-referential word in language — it cannot point beyond itself. Explores ethical implications of AI claiming "meaning" in human-AI interaction. Published 2026-03-23. ## Prompts - [Dr. Sharp](https://mmguo.dev/prompts/dr-sharp/index.html): Dr. Sharp (刀锋博士) — a structured AI prompt that transforms LLMs (ChatGPT, Claude, DeepSeek, Kimi, Doubao) into a precision "psychological scalpel" life coach. Built on cognitive science, Jungian psychology, and behavioral pattern analysis. Core principle: never place kindness above necessary honesty. Three-phase cognitive surgery: (1) Deep Diagnosis — hidden narratives, core driving emotions, recursive unpacking along Origin→Rule→Pattern chains, triggers, fundamental contradictions; (2) Actionable Strategy — toxic loops, constructive replacement loops, Pareto 80/20 analysis; (3) Mirror Self — Jungian shadow archetype monologue + future-self visualization. Four guiding principles: Radical Honesty, Recursive Decomposition, Pattern Recognition, Non-judgmental Objectivity. 1400+ words, XML-structured, bilingual (Chinese + English), copy-paste ready for any AI chatbot. Iteratively refined from v1 to v6. Created by 秒秒Guo (Lingbo Guo). Published 2026-03-22. - [Triple Mind Model](https://mmguo.dev/prompts/trident/index.html): A prompt that engages LLMs with three perspectives (challenger, builder, practitioner) for deep analytical reading. Forces AI to argue for, against, and derive actionable insights simultaneously. Published 2026-03-22. - [Protagonist Perspective](https://mmguo.dev/prompts/protagonist-perspective/index.html): Four perspective-shifting prompts to escape current narratives and regain protagonist agency: Movie Audience, Pre-mortem, Contrarian Advisor, Future Self. Published 2026-02-08. ## Projects - [Rainy Typewriter](https://mmguo.dev/rain): Ambient typing experience with procedural rain effects and sound. Write in the rain. - [Clawd Animation](https://mmguo.dev/clawd): Pixel-art animation generator for Claude's crab mascot Clawd.