He is joking. IBM Watson costs 200 engineering years to adopt to a specific ussage, and reusability is very low if usage or domain changes, according to... Gartner fwiiw . Watson is a branding/marketing invention, what IBM sells is regular Advanced Analytics. This means Watson would crumble under for example the potion belt changes, and why IBM gave up, after having chased a solution for years, pouring billions into it, and is now trying simpler games like Chess and Go.