PERSON
Leonhard Euler
The Swiss mathematician who isolated the graph from seven bridges and gave us the number e, the exponential, and the notation we still think with—the man who computed at machine scale, in total darkness, and understood every step.
Leonhard Euler is the mathematician on whose work artificial intelligence literally runs. When engineers describe a
neural network as a graph of weighted connections, they are naming the object Euler isolated in 1736 by reducing the Seven Bridges of Königsberg to four dots and seven lines and proving, for the first time, that a truth can live entirely in a structure's connections rather than its substance. His collected
Opera Omnia exceeds eighty volumes; he founded graph theory, gave the calculus of variations its machinery, characterized the number
e and the
exponential whose curve is the exact shape of
AI scaling laws, and standardized the notation—
f(x),
e,
Σ,
i,
π—that made modern mathematics thinkable. He did his most productive work blind, dictating from memory, which makes him the sharpest available lens on the question now haunting the field: can computation proceed without sight, and if it can—as Euler proves it can—what exactly