The reason people struggle with the tension between online experience and offline experience is because there is a tension between online experience and offline experience, and people are smart enough to understand, to feel, that the tension does not evaporate as the online intrudes ever further into the offline. In fact, the growing interpenetration between the two modes of experience—the two states of being—actually ratchets up the tension. We sense a threat in the hegemony of the online because there’s something in the offline that we’re not eager to sacrifice.

From Digital dualism denialism, by Nicholas Carr (via wwnorton)