Shortening the Feedback Loop
Overview
A mental model to debunk the idea that some decisions require years to evaluate. It involves identifying short-term proxies that correlate with long-term success.
Core principle: There is no such thing as a long feedback loop—it's a choice to wait.
The Framework
code
┌─────────────────────────────────────────────────────────────────┐ │ │ │ ULTIMATE OUTCOME (e.g., IPO / $1B Exit) │ │ ▲ │ │ │ │ │ ┌─────────────────┴─────────────────┐ │ │ │ INTERMEDIATE PROXY │ │ │ │ (Necessary Condition) │ │ │ │ e.g., Series A Funding (18 mo) │ │ │ └─────────────────┬─────────────────┘ │ │ │ │ │ ┌─────────────────┴─────────────────┐ │ │ │ SHORT-TERM SIGNAL │ │ │ │ (Correlated Metric) │ │ │ │ e.g., Net New ARR, Retention │ │ │ └───────────────────────────────────┘ │ │ │ └─────────────────────────────────────────────────────────────────┘
Key Principles
| Principle | Description |
|---|---|
| Necessary conditions | Find what MUST happen for ultimate success |
| Correlated signals | Look for metrics that predict the outcome |
| Proactive measurement | Design experiments to surface signals early |
| Trade safety for learning | Knowing early is better than comfortable ignorance |
Common Mistakes
- •Waiting for final exit/outcome to judge decision quality
- •Ignoring interim signals like funding or retention
- •Hiding behind "it's too early to tell"
Source: Annie Duke (First Round Capital) via Lenny's Podcast