Classic programs contain many hidden dependencies.
When a variable is changed, the flow can unknowingly change elsewhere.
In Selmo this is impossible:
Every zone knows its context, and every state is self-contained.
A change in one zone cannot unintentionally affect other zones.
That is why Selmo systems are not only reproducible but also resilient to changes.
An update never alters the underlying behavior β only the function that was actually adjusted.