I know someone who is intimately involved with IBM Watson, they are highly educated and constantly diss the system. Calling it, 'Just a large database'. If Watson was a true breakthrough, it should be gaining marketshare throughout it's specialities but it's not. Google is leading the industry with DeepMind; Facebook and Microsoft aren't far behind. I'd encourage others to be very skeptical of the PR that IBM is pushing about their Watson problem.

disclosure: I haven't read the article but wanted to share a related story.