The argument is not that communication technology is killing face-to-face interaction, but that it is limiting it. It is building a lack of desire for face-to-face meetings. We only confront each other when it's absolutely necessary, and while some may disagree that that's such a bad thing, we are physiologically designed to interact face-to-face. This way we can really read people and interpret how they feel or how they are trying to meet us. Without knowing things like facial expressions and body language, it's difficult to know what you're like