blee37 writes "Researchers at Carnegie Mellon have developed a web-scraping AI program that never dies. It runs continuously, extracting information from the web and using that information to learn more about the English language. The idea is for a never ending learner like this to one day be able to become conversant in the English language."
It's not that the program couldn't
stop running; the idea is that there's no fixed end-point. Rather, its progress in categorizing complex word relationships is the object of the research. See also CMU's "Read the Web" research project