I'm Ethan Cho.
The Venture Oracle.
I predict winners before others see them.
Then I build to prove it.
The Origin
In 2017, everyone said mobile payments were dead in Korea.
I invested in Toss anyway.
Same year, crypto was “too risky.”
I bet on Dunamu.
Today, both are unicorns.
I didn't get lucky. I saw what others missed.
That's what oracles do.
The Journey
Finance & M&A
PwC (Auditor, M&A) → Asian Century Quest (Hedge Fund)
Big Tech & VC
Samsung → Qualcomm Ventures (Toss, Dunamu) → KB Investment → Google
TheVentures
CIO + Building 15 Ventures
Education: Columbia Business School (MBA)
Four Principles
How I invest and build
1. Operators > Analysts
Real investors build. I'm running 15 startups while investing.
2. Contrarian > Consensus
If everyone agrees, you're too late. I look where others don't.
3. Data > Intuition (but both matter)
Numbers tell stories. I listen.
4. Global ↔ Korea
The future is built at intersections. I live there.
The Four Lenses
How I see opportunities
Finance & Accounting Lens
Follow the money. Unit economics don't lie. I look at cash flow, margins, and what numbers reveal about business models.
Global Lens
What works in Silicon Valley? What works in Seoul? Where's the arbitrage? 20 years bridging both markets gives me pattern recognition others lack.
Big Tech Lens
Google/Samsung taught me what scales. And what doesn't. I know the difference between real innovation and innovation theater.
Venture Lens
LP economics, founder psychology, market timing. Every investment uses at least two of these lenses.
“Every investment decision uses at least two lenses.
The best opportunities light up all four.”
Common Questions
About my track record and approach
Q:How did you predict Toss and Dunamu would become unicorns?
A:Pattern recognition from 20 years bridging global and Korean markets. When Toss was early-stage (2017), everyone said mobile payments were dead in Korea. I saw mobile payments were beginning, not ending - applying lessons from global fintech trends. When Dunamu launched (2017), crypto was 'too risky.' I recognized crypto infrastructure for Korea as a massive opportunity, seeing parallels to how Coinbase dominated US crypto. The edge wasn't prediction - it was maker positioning (deploying patient capital when market said 'NO').
Q:What's your investment track record beyond Toss and Dunamu?
A:Early-stage investor at Qualcomm Ventures (semiconductors, mobile), drove product strategy at Google (global scale), led innovation at Samsung (Korea market depth), and invested at KB Investment (Korea VC). Now at TheVentures building 15 ventures while investing. The consistent thread: operator-investor approach, contrarian timing, and structural positioning over consensus chasing.
Q:Why build 15 ventures while investing?
A:Operator-investor model: real investors build, not just analyze. Building ventures provides: (1) Firsthand understanding of founder challenges - better pattern recognition; (2) Market testing grounds - validate theses before deploying fund capital; (3) Deal flow - entrepreneurs trust operators; (4) Edge - most VCs just write checks, operators understand what scales. This approach is rare in Korea VC.
Q:What makes your VC approach different?
A:Four Lenses framework (Finance, Global, Big Tech, VC) + maker positioning instead of taker behavior. I don't chase deals with FOMO - I set terms and wait. I deploy capital when others panic, not during boom cycles. I structure around the NO case, not the YES case. And I'm building while investing, not just spectating.
Frameworks I Developed
Original concepts from 20 years of investing at Qualcomm Ventures, KB Investment, Google Korea, FastVentures, and TheVentures. Each links to a canonical definition.
Founder Intelligence
Composite capacity for good judgment under uncertainty — not academic intelligence.
E/D/R Framework
Three-layer classification of AI systems by responsibility: Execution, Decision, Responsibility.
Four Lenses Framework
Four-axis VC evaluation model: Market, Moat, Momentum, Margin.
MAU Trap
Why monthly active users is the wrong North Star for most startups.
Optimism Tax
The hidden cost founders pay for unfounded optimism in fundraising.
AI Native VC
The firm architecture required to invest in the AI era.
Maker vs Taker
Why most VC firms extract value instead of creating it.
YES Bias
The systematic tendency of VCs to say yes to the wrong deals.
Korea as Canary
Why Korean startups predict global consumer trends 18-24 months early.
Category Efficiency
How to evaluate whether a market category can support a venture-scale outcome.
Let's Talk
Founders: Building something contrarian? I'm listening.
LPs: Interested in Korea tech? Let's discuss.
Media: Need an expert on Korea VC/tech? I'm available.