Immutability

Classes are Cheap. Object Orientation is Expensive (2026-09-28)

Private fields do not guarantee ownership. This article explores why objects become costly to reason about, how immutable values help, and what happens when AI accelerates the code.
Own the Model of Reality (2026-01-30)

Data ownership is really about owning how reality is explained over time.
Institutionalized Complexity as Organizational Debt (2026-01-02)

Noise is rarely a sign of quality. Simple systems need to move only when the domain changes.

Why Relational Databases Are Absurd (2025-03-30)

A rant about how SQL databases forget the past and how immutable, append-only models like Datomic offer a better approach.

Worry About Data Structures (2023-09-18)

Why thinking about data, not syntax, might be the best thing you've done for your code all year.