Insights

Predictions, market analysis, and lessons from investing in Korea's unicorns and building 15 startups.

FEATUREDFeb 13, 2026

OpenAI's $6.5 Billion Hardware Dilemma

OpenAI의 9조원짜리 딜레마

OpenAI's hardware device delayed to 2027 after acquiring Jony Ive's io for $6.5B. ChatGPT has 810M MAU, but market share fell from 69.1% → 45.3%. Introducing the 'MAU Trap' - massive users hiding shallow engagement.

6 min read1,200 wordsRead Article →
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AI InvestingFeb 13, 2026

OpenAI's $6.5 Billion Hardware Dilemma

OpenAI의 9조원짜리 딜레마

OpenAI's hardware device delayed to 2027 after acquiring Jony Ive's io for $6.5B. ChatGPT has 810M MAU, but market share fell from 69.1% → 45.3%. Introducing the 'MAU Trap' - massive users hiding shallow engagement.

6 min1200 words
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Korea VCFeb 11, 2026

Your Startup's 2 Million Users Are Worthless

Korea's top department stores generate 52% revenue from VIPs (40+ age). Golf memberships average $200K. E-commerce: 40-60 demo has higher AOV than Gen Z. Stop chasing vanity metrics. Target paying customers, not fundable numbers.

8 min1500 words
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AI Native VCFeb 10, 2026

AI Native VC: Building Pitch Deck Review in 3 Minutes

[애당초 너두] 투자 피치덱 검토하는 웹사이트 만들기

Tutorial: Build a pitch deck review site in 3-4 minutes using Lovable.dev. But that's just a toy. At TheVentures, we built 'Vicky' - an end-to-end AI Native VC system. Real data, real investments, real edge.

4 min700 words
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Decision FrameworksJan 28, 2026

Optimal Stopping Theory for the AI Era

최적 정지 이론 - AI 시대의 의사결정

The 37% rule says explore 37%, then commit. But in AI era, N becomes infinite. How do you know when to stop when infinite options exist? The framework that applies to hiring, investing, and life decisions.

7 min1400 words
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Infrastructure InvestingJan 27, 2026

The Real AI Bottleneck Isn't GPUs

AI 시대, 진짜 병목은 GPU가 아니다

Everyone's obsessed with GPU scarcity. But network infrastructure is the real bottleneck. Why I was in Mobile & Telecom Top 200: I see infrastructure investment opportunities others miss. Open RAN, edge computing, AI-native networks.

9 min1800 words
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AGI ImpactJan 22, 2026

After AGI: Is Korea Ready?

AGI 이후의 세상, 한국은 준비됐는가

Davos 2026: Demis Hassabis & Dario Amodei agree - 6-12 months until AI does most engineering work. Korea = canary in coal mine. Low birth rate + high AI adoption = first to feel AGI impact. What survives: data, regulatory moats, trust, judgment, meaning.

11 min2200 words
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Articles originally published on Ethan Cho's Substack. Reposted here with canonical links for improved discoverability.