Like civil-rights protesters who sang rousing hymns as they were carried off to jail, Twitterers are bearing witness to what's happening around them, and calling out into the darkness of cyberspace for confirmation. I'm here. You're here, too. We are present.

To buy an Apple product is to bet on the longevity of the closed system to which we've committed ourselves. And that system is embodied - through marketing as much as talent - by Steve Jobs.

Unlike the Tea Party, who see themselves as the customers of government, people in the Occupy Wall Street movement understand that we are the government. Stated most simply, we are trying to run a 21st-century society on a 13th-century economic operating system. It just doesn't work.

Most Internet business theorists are really looking at preserving the necks of giant, Fortune 500 companies, rather than promoting the digital, peer-to-peer economy that actually wants to happen.

The 'looking forward' so prevalent in the late 1990s was bound to end once the new millennium began. Like some others of that era, I predicted a new focus on the moment, on real experience, and on what things are actually worth right now. Then 9/11 magnified this sensibility, forcing America as a nation to contend with its own impermanence.

Digital time does not flow; it flicks. Like any binary, discrete decision, it is either here or there. In contrast to our experience of the passing of time, digital time is always in the now, or in no time. It is still. Poised.

I don't think tablets are where we should be focused. But I do think they could end up being an efficient way of delivering textbooks. They're just not really that, yet. There's all sorts of poisons and mined minerals and carnage that goes on to make a tablet. Way more than to print a book. Or a bunch of books.