This should answer your questions: <a href="http:&#x2F;&#x2F;www.ft.com&#x2F;cms&#x2F;s&#x2F;2&#x2F;dced8150-b300-11e5-8358-9a82b43f6b2f.html#axzz479GitlGt" rel="nofollow">http:&#x2F;&#x2F;www.ft.com&#x2F;cms&#x2F;s&#x2F;2&#x2F;dced8150-b300-11e5-8358-9a82b43f6b...</a><p>Tldr: mostly hype. The &quot;solve cancer&quot; claims haven&#x27;t worked out. Now there are lots of big data&#x2F;machine learning APIs being branded as &quot;Watson&quot; and some are quite good.