Facebook wants to know: How are you feeling? There's a water crisis on the other side of the planet. Donald Trump tweeted his latest offensive screed. Your old friend's brother unexpectedly and tragically died. Do you like it? Better yet, do you love it? Does it make you sad or angry? Does it make you say "wow"? Facebook has upgraded the
If Facebook’s goal is to change your behavior, they need to know your psychological response to photos and videos the same way the tobacco industry needs to know people’s brain chemistry when choosing additives in cigarettes.