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.

Part of an icon's power comes from its indivisibility. The swoosh cannot be further deconstructed into its component parts. Just as golden arches mean McDonald's, and the little red tab means Levi's, the swoosh is Nike. The product is its icon, inseparably and without exception. To buy a pair of Nike shoes is to buy the Nike swoosh.

This is why it might be more useful to understand the proliferation of interactive media as an opportunity for renaissance: a moment when we have the ability to step out of the story altogether. Renaissances are historical instances of widespread recontextualisation. People in a variety of different arts, philosophies and sciences have the ability to reframe their reality. Renaissance literally means 'rebirth'. It is the rebirth of old ideas in a new context.

The horrible truth is we are linear beings; we can't multitask, and we shouldn't keep interrupting important connections to each other with the latest message coming in.

Social media is itself as temporary as any social gathering, nightclub or party. It's the people that matter, not the venue. So when the trend leaders of one social niche or another decide the place everyone is socializing has lost its luster or, more important, its exclusivity, they move on to the next one, taking their followers with them.

Beyond the hype, style, and speculation, the truth is that the iPad is really just another tablet device. A really big PDA, where a touchscreen does what a laptop's keyboard used to do.

We all know the feeling of surrendering to the embedded biases of our devices. We let our cell phones ping us every time there's an incoming message and check our e-mail even when we'd best pay attention to what's going on around us in the real world. We text while driving.