You can play with ChefWatson here: https://www.ibmchefwatson.com/

Here's the Reddit AMA with the ChefWatson Team:

https://reddit.com/r/IAmA/comments/3id842/we_are_the_ibm_chef_watson_team_along_with_our/

Interesting snippet:

Cognitive cooking is computational creativity applied to cooking. We've created a system that has ingested thousands of recipes, understands what ingredients go well together, what ingredients are used in what cuisines, what ingredient types are required to make a certain kind of dish... Using that data, the system can create never-seen-before recipes based on your inputs.

At one point a member of the ChefWatson team says...

As a human I am thankful not to be food. 

As a human I don't want IBM thinking of me as a battery!

Better than being thought of as food! We give them energy. :)

http://www.extremetech.com/extreme/135481-will-your-body-be-the-battery-of-the-future

I believe it. They did the math:

The average human, at rest, produces around 100 watts of power. This equates to around 2000 kcal of food energy, which is why your recommended daily intake of calories is around 2000 kcal. Over periods of a few minutes (or a few hours in the case of trained athletes), we can comfortably sustain 300-400 watts — and in the case of very short bursts of energy, such as sprinting, some humans can output up to 2,000 watts.

The bulk of this energy is required for important tasks, such as pumping your heart and flexing your muscles, but a lot of it is wasted — primarily as heat, but also through other physical inefficiencies. Almost all of this wasted energy could be captured and turned into electricity, which could then augment or completely replace our reliance on chemical batteries.

Yes, this is rather like that scene in The Matrix where Neo wakes up and finds out he and billions of other humans are being harnessed as a power source for the sentient robot overlords — but it does actually make a lot of sense. 

As it stands, battery technology is by far the biggest limitation when it comes to modern technology. Batteries are large, heavy, and except for one recent breakthroughcan only be fashioned into a few very restrictive shapes (cylinders, bricks). If we could remove batteries from the equation, it would suddenly be possible to have truly wearable computers — computers wrapped around your wrist, embedded in your shoes, or woven into your clothes.