It's normal for us to be constantly glued to our screens. How are they changing us, and how will they shape our future? This hour, TED speakers explore our ambivalent relationships with our screens.
Cyborg anthropologist Amber Case about how our technology is changing us into a screen-staring, button-clicking new version of Homo sapiens.
Despite their powerful computing capability, our screens have no way of knowing how we feel. But computer scientist Rana el Kaliouby says that's about to change.
Dimitri Christakis talks about how different forms of screen time affects kids and their ability to learn and develop.
Strategist P.W. Singer describes how screens have complicated the nature of war.
Filmmaker Chris Milk explains how virtual reality has allowed him to create the 'ultimate empathy machine.'