Every successful product in history was built with this loop — whether the founders knew it or not:
┌─────────┐
│ IDEAS │
└────┬────┘
│
▼
┌─────────┐
│ BUILD │ ← Build the minimum thing to test the idea
└────┬────┘
│
▼
┌─────────┐
│ PRODUCT │
└────┬────┘
│
▼
┌─────────┐
│ MEASURE │ ← Collect data on what happened
└────┬────┘
│
▼
┌─────────┐
│ DATA │
└────┬────┘
│
▼
┌─────────┐
│ LEARN │ ← Decide what to do next based on evidence
└────┬────┘
│
└──────────→ Back to IDEAS
The whole game is speed. The faster you go around this loop, the faster you find what works.