The Long Detour

Machine Learning Before the GPU, 1943–2011 · in three volumes
assembled and directed by Remy Ochei
written with an event-sourced multi-agent harness
1943 · McCulloch–Pitts 1958 · perceptron 1974 · expert systems 1986 · backprop 1995 · SVM 2011 · the eve of the GPU

▶ watch it being written — the tape, all 13,539 events, replayed

HARPY · SPEECH UNDERSTANDING · CMU 1976
VOCABULARY ......... 1,011 WORDS
NETWORK STATES ..... 15,000
COMPILE TIME ....... OVER 13 HRS, DEC-10 (KL)
THROUGHPUT ......... 80 X REAL-TIME
PROCESSOR .......... 0.35 MIPS PDP-KA10
STATUS ............. IT WORKED.
$5
PER SENTENCE.
— cost target, HARPY speech understanding system, 1976
THE ALGORITHMS WERE READY.
THE MACHINES WERE NOT.
Concept mockup of the hardcover: greenbar jacket with die-cut sprocket
 holes, the red detour line, red-sprayed page edges
the print edition, concepted — die-cut sprocket holes, red-sprayed edges. A rendered mockup, not yet an object.

Colophon

This book was drafted, revised, and fact-checked by an event-sourced multi-agent system — an author, an adversarial critic, a planner, and an arbiter — working over a corpus of ~5,000 primary papers, directed and assembled by its human author. Nothing here rests on trust in the process: the process is published. Every sentence traces to logged reads of the primary sources; every quotation was machine-verified verbatim against the paper it cites; every number in an experimental rerun comes from an executed, independently reproduced computation; and the full construction record — the tape — replays to exactly this text.

Words176,659
Sections117
Construction events on the tape13,539
Executed experiments398
Critiques filed and resolved175

Preprint, text only — figures are forthcoming. Source, tape, lab, and harness: github.com/doInfinitely/long-detour.

Even the jacket keeps receipts: the cover concepts and the design transcript are in the repository, including the quote check that caught a mocked-up cover inventing archival telemetry. Jacket copy passes the same quote check as the prose.

remyochei.com · The Bracket Studio