How to Design a Practical Type System to Maximize Reliability, Maintainability, and Productivity in Software Development Projects / Part 1: What, Why, and How?

A practical type system is essential for programming languages as it makes code more expressive, understandable, reliable, maintainable, and safe. It enables developers to define new types and their relationships, detect errors at compile-time or runtime, and ensures that code adheres to defined types and constraints. It also enhances the efficiency of the code by enabling compiler optimizations. In summary, a practical type system is crucial for writing high-quality, error-free software efficiently and effectively.