21 JAN 2026

Day 21

The Tao that can be told is not the eternal Tao.

Laozi · Tao Te Ching

A colossal stone figure with a bearded human head wearing a horned cap, the muscular body of a bull, and detailed bird wings, carved in high relief with cuneiform inscription across the body.

I · THE OBJECT · BRITISH MUSEUM

Human-Headed Winged Bull from Nimrud

Neo-Assyrian · circa 883–859 BC · Gypsum alabaster

It has five legs so that it works from two angles: standing still when you face it, striding forward when you walk past. A door guardian designed for a moving viewer.

Enter lesson 6 MIN

II · THE IDEA · ARTIFICIAL INTELLIGENCE

Living in 4,096 Dimensions

Language and tokens · 384 to 4,096, depending on model · Sentence-BERT (2019), Universal Sentence Encoder (2018)

A 4,096-dimensional space is not just a bigger room. Distances bunch together, corners vanish, and the geometry that guides our intuition stops working in ways that matter for how models compare meaning.

Enter lesson 7 MIN

A woman with long dark hair and a transparent veil, hands folded, seated before a distant landscape of rocks and water. Her expression is calm, her gaze direct, and the corners of her mouth dissolve into shadow.

III · THE WORK · ART HISTORY

Leonardo's Mona Lisa

Leonardo da Vinci · 1503–1517 · Oil on poplar panel

Leonardo applied oil in layers transparent enough to let light pass through and bounce back from the panel beneath. The technique erased every trace of the brush that laid it down.

Enter lesson 7 MIN