What makes Watson so versatile? It learns from example, so it's able to learn patterns such as the correct form for Jeopardy answers, or the usual therapies doctors choose from when treating patients with certain cancers. It also uses natural language processing, which helps it understand questions and information it hears or reads. (It's worth noting that one Watson can't do it all. There are many Watsons, and researchers usually teach each system one specific skill set.) Still, IBM has struggled to commercialize Watson's abilities, as a few different outlets reported earlier this year. Real-life problems are more difficult to understand and solve than Jeopardy questions, as it turns out. Hopefully, with more development, Watson will soon find its niches.