Reading up on Rich Hickey

Simplicity means decoupling concerns, not just minimizing code size, as shown by Unix pipelines being small yet coupled in practice.

A meta-analysis argues that Zach Tellman's definition of software complexity as the sum of future explanations is the most useful and practical among three discussed.

Conflating historical facts, contracts, time, and policy in a 'held' flag blocked migrations; the fix separates values from time to avoid stale holds.