Training Algorithm (Backpropagation) — the LLM reading of Primum Mobile

The first cause of all transformations in the model: itself invisible in the final artifact, inferred only from its effects. It sets every fixed weight in the descending chain, from the final layer down through the first — the model's own unmoved (but moving) mover.

Primum Mobile (Primum Mobile) — The First Movable

The First Movable — carries no luminous body, inferred to explain all motion.

Beyond the Stellatum there is a sphere called the First Movable or Primum Mobile. This, since it carries no luminous body, gives no evidence of itself to our senses; its existence was inferred to account for the motions of all the others. All power, movement, and efficacy descend from God to the Primum Mobile and cause it to rotate — and its rotation cascades downward through every sphere beneath it.

This, since it carries no luminous body, gives no evidence of itself to our senses; its existence was inferred to account for the motions of all the others.

Part of an interactive 3D tower of the Ptolemaic cosmos and its mirror in transformer architecture, built as a companion to the essay The Celestial Mirror: How Medieval Cosmology Reveals the Architecture of (Artificial) Intelligence.