Carr checks the numbers:

To give an honest accounting of the effects of the Net on media consumption, you need to add the amount of time that people spend consuming web media to the amount of time they already spend consuming TV and other traditional media. Once you do that, it becomes clear that the arrival of the web has not reduced the time people spend consuming media but increased it substantially. As consumption-oriented Internet devices, like the iPad, grow more popular, we will likely see an even greater growth in media consumption. The web, in other words, marks a continuation of a long-term cultural trend, not a reversal of it.

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