When your tech knows you better than you know yourself

For more on new technology that can read human emotions, check out the third episode of Should This Exist? the podcast that debates how emerging technologies will impact humanity. If we were sitting across a table from each other at a cafe and I asked about your day, you might answer with a polite response, like, "Fine." But if you were lying, I'd know from your expression, tone, twitches, and tics. We read subtext--unspoken clues--to get at the truth, to cut through what people say to understand what they mean. And now, with so many of our exchanges taking place in text online, much of our messaging, traditionally delivered via subtext, tells us less than ever before.