Read the Code That Creates the World

Event handlers explain local reactions. Startup code explains which components exist, who owns them, how they connect, and which stable relationships persist for the application’s lifetime.

Mapping each constructor and invocation on one linear sheet reveals the grand architecture. It turns a collection of callbacks into a system with history, state, and purpose.

Own the Feedback Loop

Data science also creates architecture. Mathematical models consume observations and human hypotheses, produce insights and recommendations, and feed those outputs back into people and institutions.

The data scientist chooses where to look and which world to model. Engineers should claim responsibility for that creative input, the resulting actuators, and the larger system their work changes.