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The Daily Triptych009 / 365

9 JAN 2026

Day 9

Man is only a reed, the weakest in nature, but he is a thinking reed.

Blaise Pascal · Pensées
A goat standing upright on its hind legs, forelegs resting against a stylised flowering plant. The figure is covered in gold foil, with details in blue lapis lazuli and white shell, mounted on a rectangular base.

I · THE OBJECT · BRITISH MUSEUM

Ram in a Thicket

Sumerian · 27th century BC · Ur

The excavator lifted it from the ground in fragments, its wooden core rotted away. What visitors see now is as much reconstruction as survival — and that is how archaeology works.

Enter lesson 6 MIN

II · THE IDEA · ARTIFICIAL INTELLIGENCE

Activations: ReLU, GELU, SwiGLU

Foundations · ReLU 2010s, GELU 2016, SwiGLU 2020 · Feedforward blocks in transformers

A network of pure matrix multiplications can only learn straight lines. The activation function, applied between layers, is what permits a model to capture curves, boundaries and every other pattern worth learning.

Enter lesson 7 MIN

Written before source checking was enforced · facts in this lesson are unverified

A tall Gothic cathedral with two unmatched spires, one plain and one ornate, and a façade filled with large rose windows and pointed arches.

III · THE WORK · ART HISTORY

The Windows of Chartres Cathedral

Chartres, France · 1194–1220 · Pot-metal stained glass

The windows at Chartres glow with a cobalt blue no modern glassmaker has managed to recreate. The building was designed around them, not the other way round.

Enter lesson 7 MIN

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