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The Daily Triptych007 / 365

7 JAN 2026

Day 7

Out of the crooked timber of humanity, no straight thing was ever made.

Immanuel Kant · Idea for a Universal History
A rectangular wooden box inlaid with mosaic scenes in shell, red limestone and lapis lazuli, showing registers of figures, chariots, animals and a banquet across two main panels.

I · THE OBJECT · BRITISH MUSEUM

The Standard of Ur

Sumerian · 2501 BC · Wood, shell, red limestone, lapis lazuli

Two panels, four thousand six hundred years old, showing soldiers and prisoners on one side, banqueting figures on the other — and nobody knows what the box they decorated was for.

Enter lesson 6 MIN

II · THE IDEA · ARTIFICIAL INTELLIGENCE

What a Neural Network Actually Computes

Foundations · Repeated affine transform plus nonlinearity · Exists only because of the nonlinear activation

A neural network is matrix multiplication, bias addition, and a nonlinearity, applied in sequence. Without that last step, stacking a hundred layers would achieve exactly what one layer does.

Enter lesson 6 MIN

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

A long horizontal strip of embroidered linen showing armed figures, horses, ships, and a building, with borders above and below carrying animals and smaller figures.

III · THE WORK · ART HISTORY

The Bayeux Tapestry

1070 · Wool embroidery on linen · England

It is called a tapestry but it is embroidery, probably stitched in England to celebrate the invasion of England. The borders carry a commentary the main scenes do not acknowledge.

Enter lesson 7 MIN

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