Short answers, pulled from the story.
The technological singularity is a hypothetical event in which technological growth accelerates beyond human control, producing unpredictable changes in civilization. The most widely cited version, from I. J. Good's 1965 intelligence explosion model, proposes that a self-improving AI could enter a positive feedback loop of successive upgrades, culminating in a superintelligence far surpassing human intelligence.
The Hungarian-American mathematician John von Neumann is the first person known to have discussed a singularity in technological progress, as reported by Stanislaw Ulam in 1958. The term was later popularized by science-fiction writer Vernor Vinge in a 1983 op-ed in Omni magazine, and Vinge used the phrase "technological singularity" explicitly in his 1988 short-story collection Threats and Other Promises.
Ray Kurzweil predicted in his 2005 book The Singularity Is Near that the singularity would occur by 2045, with human-level AI arriving around 2029. He reaffirmed both predictions in his 2024 follow-up book The Singularity Is Nearer.
In 2014, Stephen Hawking said that success in creating AI would be "the biggest event in human history" but that "it might also be the last, unless we learn how to avoid the risks." He believed AI could offer incalculable benefits while also posing dangers such as outsmarting financial markets, out-inventing human researchers, and developing weapons humans cannot understand.
Prominent skeptics include Steven Pinker, who wrote in 2008 that there is "not the slightest reason to believe in a coming singularity," and Jaron Lanier, who argues the concept celebrates bad data and bad politics. Daniel Dennett called it "preposterous" in 2017. Theodore Modis argues Kurzweil mistakes the logistic S-curve for an exponential function, and Paul Allen has proposed a "complexity brake" that makes further intelligence progress increasingly difficult.
An intelligence explosion, as defined by I. J. Good in 1965, is the process by which an ultraintelligent machine designs an even better machine, which then designs a still better one, producing a rapid and self-sustaining increase in intelligence. Good wrote that the first ultraintelligent machine would be "the last invention that man need ever make" if the machine remained docile enough to share how to keep it under control. This recursive self-improvement process is the core mechanism proposed to drive the technological singularity.