There are no control structures. (no if..else, no switch..case) Decision making only possible on function returns.

A single unit test is enough to have 100% coverage on functions, always.

Dynamic yet compilable, procedural programming paradigm combined with pure functions.

Immutable function call parameters, no segmentation faults, no stack smashing.

Language's itself forces you to write less error-prone code with its decision blocks.

Highly extensible with easy to develop Chaos C extensions. Incredibly modular with smart dependency checks.