Ready or Not, Companies Will Soon Be Tracking Your Emotions

Deep in the bowels of Houston's 72,000-seat NRG Stadium, in a curtained-off makeshift room near the court where the Villanova Wildcats and the University of North Carolina Tarheels are playing for the NCAA basketball championship, a small team of engineers and data scientists from a company called Lightwave huddles over laptops watching a stream of real-time data. But the engineers aren't looking at shooting percentages.
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