The Core Difference
The difference between Vibecoding and Predictive Development is simple.
Vibecoding asks:
What code should exist?
Predictive Development asks:
What system should exist?
One focuses on implementation.
The other focuses on architecture.
Mini Exercise
Rewrite one feature request first as a Vibecoding question and then as a Predictive Development question.
Example
- Vibecoding:
What code should exist for a login page? - Predictive Development:
What authentication system should exist before we implement a login page?