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The Daily Triptych001 / 365

1 JAN 2026

Day 1

The unexamined life is not worth living.

Socrates · Plato, Apology
A small, smooth brown calcite sculpture of two abstracted figures embracing, their heads tilted together and their bodies merging into a single rounded form below the shoulders.

I · THE OBJECT · BRITISH MUSEUM

The Ain Sakhri Lovers

Natufian · 9th millennium BC · Calcite

Carved from a single pebble nine thousand years before the pyramids, small enough to cup in your palm, and designed so the embrace closes from every angle you turn it.

Enter lesson 6 MIN

II · THE IDEA · ARTIFICIAL INTELLIGENCE

What Machine Learning Is, and Is Not

Foundations · Computer science · Mid-twentieth century

Machine learning builds a function from data you supply. It does not reason, understand context, or learn the way a child does — and the difference matters.

Enter lesson 6 MIN

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

Interior view looking up at a large brick dome with a ring of closely spaced windows at its base, supported by four curved pendentives above a square floor plan, with walls of marble and gold mosaic.

III · THE WORK · ART HISTORY

Hagia Sophia

537 · brick · Byzantine architecture

The builders placed forty windows around the base of a brick dome so that, from below, the solid structure seems suspended in mid-air. It collapsed once. They rebuilt it steeper.

Enter lesson 7 MIN

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