(from source[1]) "The Technological Singularity, or simply "Singularity," is a multi-faceted concept in futurism with several overlapping and sometimes conflicting definitions. The most proper and prominent definition of the Singularity was given by Vernor Vinge in his essay, The Coming Technological Singularity. It refers to the point at which superhuman intelligence is created technologically. These superhuman intelligences could then apply their brainpower and expertise to the task of creating additional or more powerful superhuman intelligences, resulting in a snowball effect with consequences beyond our present ability to imagine."

(from source[2]) "A technological singularity is a hypothetical event occurring when technological progress becomes so rapid that it makes the future after the singularity qualitatively different and harder to predict. Many of the most recognized writers on the singularity, such as Vernor Vinge and Ray Kurzweil, define the concept in terms of the technological creation of superintelligence."

see also Singularity