By encoding and preserving knowledge, test code directly reduces uncertainty by completing information about objectives.

The value of software design lies in its adaptability, balancing current functionality with a structure for future growth. Effective design manages complexity, reduces costs, and ensures software evolves with changing needs, making it a strategic asset in unpredictable environments.

It is an efficient learning workflow that conserves our cognitive resources and mitigates the illusions of knowing, which ironically limits its adoption.

Before knowledge can be encoded into software, it must first be acquired. Since capturing knowledge is essentially learning, software development is primarily a learning process.

Uniqueness, sameness, relative identity, and sortals offer a clearer mental model for guiding the design decisions involved.

The difference between naive and savvy software lies in the knowledge they contain.