Watson isn't what investors and the general public thinks it is. It's now more or less some classifier/machine learning as a service plus a dev integration team you can hire to pull it into your codebase (which by the way, is lots of $$$) It is not difficult for anyone on HN to spend a weekend, read a machine learning book, and replicate most of Watson's functionality. It's IBM marketing at it's finest.
you are full of it. Are you sure you can replicate beating world class players on jeopardy in a weekend?
It's a very-constrained domain, and the challenge Watson won has never been opened to scrappy teams other than IBM. I wrote up my doubts way back in 2011:
https://memesteading.com/2011/02/16/ibm-watson-overprovision...
Here in 2018, I suspect a clever focused team could make a MacBook, with current dumps of Wikipedia/Wikidata and a few other key reference materials, competitive in most Jeopardy matches in a week or two. And, with 6 months to a year, as dominant as "Watson" was against the Jeopardy champs.