Sir James Lighthill, the Lucasian Professor of Applied Mathematics at Cambridge, was asked by the UK Science Research Council to give an independent assessment of artificial intelligence research. His report, “Artificial Intelligence: A General Survey,” is dated July 1972 and was circulated and published in 1973. Only the year of public impact is firmly documented for the milestone date, so this entry uses 1973; the report itself carries a July 1972 date on its title page.
The report text, hosted at the Chilton Computing archive, divides AI into three categories: Advanced Automation, Bridge activities involving robots, and Computer-based studies of the central nervous system. Lighthill concluded that the field had badly underdelivered against its early promises, singling out the “combinatorial explosion” problem that made many techniques fail to scale from toy problems to real ones.
The practical consequence was severe. The British government used the report to justify withdrawing general AI funding from all but a few universities, helping start what is now called the first AI winter. Coming a few years after Minsky and Papert’s critique of perceptrons, it deepened a long stretch of skepticism that neural network and AI research had to climb out of before the breakthroughs of the 1980s and beyond.