Is there anyone left younger than 50, or maybe 40, who isn't online 24/7? Being online has a different sensibility now. It's not that one lives before a computer so much as one is in some way there and participating. For instance, Twitter is an aggregator for me as much as it is a microblogging tool. Each morning I start at page 12 and read forward. That doesn't catch me up by any stretch (it used to when I followed only a couple hundred people), but it gives me a sense of what's being said by the people I follow.
Given this, it doesn't surprise me to read that one of Bob Gourley's predictions is that the IPv6 shift will begin in homes. Being online is practically synonymous with rich content now. The effect of rich content is to make online experiences more personal rather than less. I wouldn't be surprised to hear at some point that as the content gets richer, the time people spend online decreases rather than increases.
Thoughts? Additional context? You know where the 'leave a comment' link is.