I · THE OBJECT · BRITISH MUSEUM
The Lyte Jewel
A gold and enamel locket of 1610, limned by Nicholas Hilliard on vellum, kept in the British Museum and still known by the name of a Jacobean antiquary.
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20 JUL 2026
Day 201
The unexamined life is not worth living.
II · THE IDEA · ARTIFICIAL INTELLIGENCE
Memory-Efficient Backpropagation with Reversible Layers
Invertible residual blocks let a network discard intermediate activations after the forward pass, then rebuild them on the way back — spending extra compute to free memory.
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Written before source checking was enforced · facts in this lesson are unverified
III · THE WORK · ART HISTORY
The Return of the Prodigal Son
A kneeling son, a father’s hands, and an older brother who will not join the embrace — Rembrandt’s large late painting of forgiveness held in silence.
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