The issue is in the combination of data. Could you imagine the value of knowing if your heart rate went up after reading a certain message, or seeing a certain ad?
What's the cost?
To identify the costs, we’ll have to think about who might want to purchase this data and what they could do with it.
Ask yourself this: why would anyone be willing to pay for your heart rate?
No, I'm guessing it's worth a couple of cents ?
The Left 4 Dead director was trained on player emotions and designed to improve the game, which was a huge success.
Having access to it in the field has real applications.