Which artificial intelligence applications will flourish by 2030?

For decades, artificial intelligence has been depicted as a sinister force in science fiction. Think of HAL-9000, the main antagonist in Arthur C. Clarke's Space Odyssey series. But while applications of AI and machine learning are indeed sophisticated and carry the potential to be dangerous, my own view is that over the course of this decade, the most frequent encounters people are going to have with these neural technologies will seem both ordinary and positive. But there is one important area of algorithmic use that will require real work. I am thinking here of areas in which prototypes already exist: AI-powered activities that are likely to become normal by the end of this decade: Conversational Commerce, Home Technical Support, and Autonomous Vehicles. However, a fourth one, Institutional Decision Making, has few satisfactory prototypes at this time and so will be harder to fix.