Whether it's watching a $4,000 laptop fall off the conveyor belt at airport security, contending with a software conflict that corrupted your file management system, or begging your family to stop opening those virus-carrying 'greeting cards' attached to emails, all computer owners are highly leveraged and highly vulnerable technology investors.

Every new computer program is basically doing some task that a person used to do. But the computer usually does it faster, more accurately, for less money, and without any health insurance costs.

Facebook's successor will no doubt provide an easy "migration utility" through which you can bring all your so-called friends with you, if you even want to.

It's also hard for people to contend with the difficult possibility that we are simply overadvanced fungi and bacteria hurtling through a galaxy in cold, meaningless space. But just because our existence may have arisen unintentionally and without purpose doesn't preclude meaning or purpose from emerging as a result of our interaction and collaboration. Meaning may not be a precondition for humanity as much as a by-product of it.

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.

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.

Brains are tricky and adaptable organs. For all the 'neuroplasticity' allowing our brains to reconfigure themselves to the biases of our computers, we are just as neuroplastic in our ability to eventually recover and adapt.