The Horizon Lab

Measure it, then argue.

Long-form writing on software systems, and the measurements behind the opinions.

The Performance Number Everyone Tracks and Almost Nobody Uses Properly

The Lighthouse score is a real signal. It is also the most misread number in web development.

Four typographic decisions that separate software that feels considered from software that does not.

You cannot pay it down in a sprint, and the metaphor is doing real damage to how teams plan their quarters.