Tangdao
躺岛
Tangdao (躺岛) is a Chinese sleep-environment brand co-founded by Koji, who also served as its CEO . Koji is a serial entrepreneur whose earlier ventures include the location-based social app Jiepang (街旁), content company The Fair (新世相), and stints at Fanfou (饭否) and Jumei Youpin (聚美优品) . He described his time as Tangdao's CEO as stressful, marked by daily anxiety . Beyond Tangdao, Koji has since moved into AI entrepreneurship, launching AI Hacker House, a community space for AI founders .
elsewhere's corpus does not cover this subject in depth — the above is drawn from passing references in interviews where Koji discusses his own career rather than dedicated reporting on Tangdao itself.
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Coverage
Standing at the Crossing, roads stretch out in every direction — all roads lead to Rome | Chatting with *Beyond Cycles* about my Crossing
Pessimists are often right, but only optimists succeed. The pessimist's angle is: "Oh god, what am I going to do?" The optimist's angle is: "Wow, all roads lead to Rome."
On the "Ruins" of Double Reduction, Rebooting Life with AI | A Conversation with Serial Entrepreneur Liu Ye: From Zuoyebang to Talkit
Behind the Claude Code Top User: How an AI Founder Pushed a Tool to Its Limits | A Conversation with Xiaopai Liu
"Potential Energy" Is the Moat for AI Products | Latest from a16z
You need to break the mold.
Securing a16z Investment, They're Rebuilding Ad Systems with AI | A Conversation with Gen-Z CEO Jason Hu
"SEO's New King of the Grind": Pollo AI Founder Abiao on How to Do SEO, Work with Creators, and Run Paid Ads
SEO isn't rocket science, but it's not exactly simple either.
"I Didn't Touch a Drop of Moutai and Still Did 30 Million Last Year" | AI in China ⑤: How to Actually Get Results with AI-to-B in the AI Era?
Deep-Dive into Lark's New AI Features: Possibly the Most "Genuinely Useful" AI Implementation of 2025
After several months of beta testing, Lark finally released it to the public.
Ten Thousand People Go to Sleep with AI on "Solo Echo" Every Night | A Conversation with Dengke Wang on AI Companionship Products and the Changing Startup Narrative
Interview with CES 2025 China Dark Horse Jiabin He: Founder/CEO of AI Pet Robot Ropet
Breathing Warm Human Emotion into the Electronic Heart of AI Pets
"SEO's New King of the Grind": Pollo AI Founder Abiao on How to Do SEO, Influencer Marketing, and Paid Ads
CES 2025's Dark Horse From China: A Deep Dive Into the Founder Mindset | A Conversation with Jiabin He, Founder/CEO of AI Pet Robot Ropet
How a Less Anxious CEO Is Made: A Conversation with Maozhu on Duozhuayu's Eight Years, Darkest Hours, and New Plans
Behind the Manus Hype: 20 Questions to Help Us Understand AI Agents
The Evolution of AI Search, the Manus Explosion, the Rise of Agents, and AI's Transformation of Education: Science Popularization Platform Guokr Founder Eric Ji's 2025 Tech Outlook
From Medical Student to AI Artist | A Conversation with Hyacinth on AI Video Tools, Startup Opportunities, and Life's Crossroads
A "Follow Your Heart" Story
How to Build a "Down-to-Earth" AI Startup: From Google X Researcher to $1M ARR in 6 Months — A Conversation with Changyin Zhou, Founder of Vozo
As More People Want to Become Super-Individuals | A Chat with Jiang Dora on Career Journey, AI Experience, and Life in Liangzhu, Hangzhou
A New Year Conversation with Koji: 2025 — The Critical Year for AI, the Dawn of the Agent Era
2025 Kickoff Conversation: AI's Pivotal Year, the Dawn of the Agent Era | A Conversation with Yusen Dai of ZhenFund
From Models to Hardware, From Applications to the Rise of Super-Individuals | A Review of China's AI Innovations in 2024
AI in China ④: "My Interviewer Isn't Human? Isn't Human!" | A Conversation with Gongjun Liang: Founder of Hina AI
This Is Absolutely Not the Top 10 AI Stories of 2024 You'd Expect | A Conversation with CyberZen's Editor-in-Chief "Dacongming"
"Lovely people don't get defeated by life."
This Is Definitely Not the 2024 AI Top 10 List You'd Expect | A Conversation with CyberZen Founder Dacong Ming
AI in China ③: Two Founders Who Found PMF — Why Are They Still Anxious? | A Conversation with Jisi Tech and Talk AI
Returning to Dollar-Denominated VC: Like Joining the Nationalists in 1949? | A Conversation with Xing Meng, New Partner at 5Y Capital
The AI Designer's Guide: Who Am I, Where Did I Come From, Where Am I Going? | A Conversation with ByteDance AI Product Designer Pozzo and Freshippo/Tmall IP Designer Zhao Chen
In Beijing, let's chat about how AI sees love, hate, and everything in between?
Using AI to achieve "emotional equality" — using AI to see people's stories and emotions, to understand more of the love and hate, joy and sorrow, partings and reunions.
AI in Silicon Valley: White-Hot and Bubbling | A Conversation with Bob Xu and Yunfei, Founder of Beta University
AI in China: 10 Enterprise Deployment Cases and Their Business Implications | A Conversation with Ren Xin: AI Entrepreneur and Investor
Over the past six months, Ren Xin and I have been immersed in AI day in and day out, and we've observed ten real-world AI application stories.
What Can Hundreds of Young Hackers Build in 72 Hours? | A Conversation with the AdventureX Core Team + 8 Demo Day Projects
Are my investor friends really all liquidating their NVIDIA positions?
From Founding NYSE: LAIX to Becoming an AI Investor | A Conversation with Oasis Capital Director Ben on English Learning, EdTech Products, and Career Planning in the AI Era
"I Want to Shatter Your Unrealistic Fantasies About AI, and Rebuild a Correct Understanding" | Podcast
The most knowledge-dense episode of "Crossing" podcast ever is here!
"I Want to Shatter Your Unrealistic Fantasies About AI and Rebuild a Proper Understanding" | A Conversation with Leding Li, Baidu Principal Architect in the Trenches
He Got Cocky, Fell Apart, Had an Epiphany, Then Built an AI App That Hit #3 on the Paid Charts | A Conversation with Chunxiang Zhao, Founder of *Stomach Book*
The AI Product Manager's Guide: Who I Am, Where I Came From, Where I'm Going | A Conversation with ByteDance AI Product Lead Vanessa: Lessons from Interviewing 100 AI Product Managers
From Anxiety to Freedom: How Everyone Can Have Their Own Small Business in the AI Era | A Conversation with Saito, Co-founder of Indie Hacker and Podwise
Let the Wounds Humans Inflict Be Healed by AI: A Conversation with Joshua, CEO of Linjian Healing Room, and Hezi, CMO
A Good AI Should Be Like Doraemon | Koji x Yusen
Throwing a "Hundred-Day Banquet" for a Podcast — AI-Era Activist Salon
100 Days, an AI Podcast: How to Go from 0 to 5,000 Members? 7 Numbers, 5 Takeaways, 800 RMB in Revenue
What Are Top AI Founders Building? | A 5-Hour Podcast Breaks Down 260 Y Combinator AI Companies from the Past Year (Part 1)
Two interesting things lately: Crossing's positioning & Video Battle.
Finding and Uniting "Active Agents" in the AI Era
"Not Doing Something Would Be a Waste of This Era" | Interview with Indigo: Took Companies Public; Invested in OpenAI, Anthropic; 300% Returns on US Stocks
How Many Miracles Can Ordinary People Create Once They Have AI: The "Love, Hate, Passion, and Vengeance" AI Video Creation Project
Come become the new legend
Will the Next King of Comedy Inevitably Be AI? A Conversation with Stand-up Comedian Mao Dong and Former Xiaoguo Brand Director Vincent Zoo | Creators in the Age of AI Ep03
At the Crossroads of AI, the Future Comes Roaring In | 16 Observations and Reflections from Q1
Standing at the AI Crossing, the Future Comes Roaring In | 16 Observations and Reflections from My Q1
The green mountains endure, the clear waters flow on — change never misses its cue.
The Next Jay Chou: Human or AI? | A Conversation with the CEO of *Youci Mountain* and the GM of *Wajijiwa Music* on Suno
Music remains scarce — Suno is just a pretty little toy.
Fifteen Years in VC, Finally Catching the New Wave of AI | A Conversation with Minghao Zhuang on Opportunities, the Future, and Life Lessons | Doraemon in the Age of AI Ep01
How Are Top Podcasters Doubling Their Creative Efficiency in the AI Era?
"The future is already here — it's just not evenly distributed."
How to Break Free from the Algorithm's Web and Live Without Anxiety? | A Conversation with Danny Xiao, Host of "Big and Small Horse Talk Tech" | Creators in the AI Era Ep02
30 Pitfalls to Avoid in Content Creation, Why Salary Is the Most Addictive Drug | A Conversation with Liu Fei, Host of "Bannatie" and "San Wu Huan" | Creators in the AI Era Ep01
Qidi Weekly | The AI Face-Off Between Zhilin Yang and Allen Zhu
"Inspiration Weekly" is a column I'll update every week. Here, I'll record five people or things that inspired me during the week — to help me reflect, grow, expand my intellectual boundaries, and become freer and happier.
When Everyone Opposed Using AI for Parenting, It "Saved" Me Twice!
What is love?
In One Year, Using ChatGPT, Achan Went From Quitting His Job to Topping GitHub's Global Trending List
What he didn't expect was that ChatGPT didn't help him find his next startup direction — but it did make him freer, and happier.
Enlightenment Weekly | Why Read Warren Buffett's Shareholder Letter Every Year? Here Are 6 Reasons
What's scarce isn't knowledge — it's wisdom.
Li Auto MEGA: One Incident, Four Heartbeats, Three Observations
And, love at first sight.
After the Sora Hype Subsides, Reason Emerges: What 5 Top Creators Really Think
The best time to reexamine a hot topic's impact, controversies, and value is when the frenzy has just passed but the afterglow remains.
In One Year, Using ChatGPT, Achan Went From Quitting His Job to Hitting the Global GitHub Trending List
Managing Emotions With AI: Olympic Gold or Surveillance Nightmare?
Big Brother is Watching You
To Talk AI, We First Drank an AI Coke — Nine AI News Stories That Caught Our Eye Recently
3 Articles and 1 Tool for AI Beginners
Everyone, to some degree, carries a version of the same question: Will AI make me stronger, like wings on a tiger? Or will it slowly consume me?
