Marvin Minsky

Minsky was 23 when he built a machine that learned. SNARC, wired together in 1951 while he was a graduate student, was the first randomly wired neural network learning machine, and the interest behind it had been forming for years. His father was an eye surgeon, his mother a Zionist activist, and the schools they picked sorted hard for brains: the Ethical Culture Fieldston School, then the Bronx High School of Science, then Phillips Academy in Andover. He served in the Navy in 1944 and 1945, took a mathematics degree at Harvard in 1950, and finished a Princeton doctorate in 1954 on neural-analog reinforcement systems and the brain-model problem. The question underneath all of it was what a mind is made of.

He joined the MIT faculty in 1958 and never left. The laboratory he and John McCarthy started there in 1959 ran the field's hard problems for decades: machine vision, robot arms, and how to represent what a program knows. He invented the confocal scanning microscope, patented in 1957 and now standard equipment in biology. He advised Stanley Kubrick on 2001: A Space Odyssey, and the Turing Award came in 1969. His own theory arrived in The Society of Mind in 1986 — intelligence is not one thing but a crowd of small unintelligent processes with nobody in charge.

Perceptrons, written with Seymour Papert and published in 1969, is the most argued-over book the field has produced. What it did was mathematics. It proved that a single-layer perceptron, the neural network Frank Rosenblatt had made famous, could not compute functions as simple as exclusive-or, and it mapped precisely which problems lay beyond that architecture. What followed was a long collapse in money and attention for neural networks — the first AI winter, by the usual account. Minsky and Papert said for the rest of their lives that they had never set out to kill the approach, and noted that the book itself discusses multilayer networks. Researchers who revived the approach later, Geoffrey Hinton among them, have argued the chilling effect was real whatever the intent.

The approach he was blamed for burying is the one that won, and he lived to watch it happen — by 2012 layered neural networks were beating every rival method in machine vision. He died of a cerebral hemorrhage in Boston on January 24, 2016. Three years later, unsealed court filings named him: Virginia Giuffre said Jeffrey Epstein had directed her to have sex with him, on the island where Minsky had organized two academic symposia. His widow, the pediatrician Gloria Rudisch, denied it. The claim was never tested. MIT's Media Lab, where he held a chair, lost its director over Epstein's money, and an outside review commissioned by MIT reported significant mistakes of judgment in January 2020.

Marvin Minsky's life against the full span of the corpus.

• SNARC invention
  The first randomly wired neural network learning machine 1951
• Confocal scanning microscope patent
  Filed in 1957 and granted in 1961 as US Patent 3,013,467 1957
• Computation: Finite and Infinite Machines book
  The textbook that taught a generation what a machine can compute 1967
• Perceptrons: An Introduction to Computational Geometry book
  With Seymour Papert. The limits of single-layer networks, proved 1969
• The Society of Mind book
  Written for general readers. Mind as a committee of simple parts 1986
• The Emotion Machine book
  A late revision of the theory, taking on feeling as well as thought 2006

• 1951 aged ~24 Builds SNARC, the first randomly wired neural network learning machine He was 23 and had not yet finished his doctorate.
• 1954 aged ~27 Takes a Princeton PhD on neural-analog reinforcement systems The thesis subtitle was its application to the brain-model problem.
• 1956 aged ~29 Attends the Dartmouth workshop that establishes artificial intelligence as a field
• 1957 aged ~30 Files the patent for the confocal scanning microscope Granted in 1961. The design is now standard in biology laboratories.
• 1959 aged ~32 Starts the MIT artificial intelligence laboratory with John McCarthy It became the Computer Science and Artificial Intelligence Laboratory.
• 1969 aged ~42 Publishes Perceptrons and wins the Turing Award in the same year The book proved what single-layer networks cannot do. The argument about what it caused has never ended.
• 1986 aged ~59 Publishes The Society of Mind Intelligence as the product of many parts that are not themselves intelligent.
• January 24, 2016 aged 88 Dies in Boston of a cerebral hemorrhage at 88
• 2019 aged ~92 Unsealed court filings name him in the Epstein case, three years after his death Virginia Giuffre said she was directed to have sex with him. His widow denied it and the claim was never tested.

• John McCarthy 1927–2011
  Coined the term artificial intelligence and created the Lisp programming language. co-founded with
• Claude Shannon 1916–2001
  Mathematician and engineer who founded information theory, the basis of all digital communication. mentor
• Stanley Kubrick 1928–1999
  Director whose technically ambitious films redefined science fiction, war, horror, and cinematic authorship. advised
• J. C. R. Licklider 1915–1990
  The 1960 paper that described interactive computing before it existed, and the ARPA money that produced the ARPANET funded by
• Jeffrey Epstein 1953–2019
  Financier and convicted sex offender whose 2008 plea deal became a national scandal. accused by association with