The point is, there's this new sense of skepticism and questioning toward tech, even if it is pretty inchoate. What I hope the book helps to do is help people clarify what is amiss, by presenting a critique that is grounded in economics.

Those who applaud social production and networked amateurism, the colorful cacophony that is the Internet, and the creative capacities of everyday people to produce entertaining and enlightening things online, are right to marvel. There is amazing inventiveness, boundless talent and ability, and overwhelming generosity on display. Where they go wrong is thinking that the Internet is an egalitarian, let alone revolutionary, platform for our self-expression and development, that being able to shout into the digital torrent is adequate for democracy.

All this stuff - about the materiality of the network, what it's made of, and how it works - should be part of a basic media literacy, because we depend on this technology for more and more aspects of our day-to-day lives.

Art and culture are nonetheless vital, essential even, to what it means to be human, yet digital abundance has diminished our sense of their worth.

My point, though, is that if lines have indeed shifted, it's not so much that the younger generation just doesn't care, it's that we have ceded more and more of our public life over to the private sector. If you grow up with advertising at school, you have come of age in a sold-out world.

I try to look at the evolution of these utopian claims. In the late '60s there was an assumption that the wealth generated by industry would be taxed and then put into social programs and it would provide a baseline of stability that would allow people to have the time for self-expression; and that social contract has eroded over the last four decades and now it's every person for themselves.

think there's a culture of Silicon Valley that seems to have the attitude that you can have it both ways, that you can be an insurgent but also, ultimately, it's paid for by advertising, when in fact advertising is totally retrograde. Now that's an industry we should be disrupting, and maybe you disrupt it by funding public media. None of this is technological destiny; there are only social choices.