Most simply, 'present shock' is the human response to living in a world that's always on real time and simultaneous. You know, in some ways it's the impact of living in a digital environment, and in other ways it's just really what happens when you stop leaning so forward to the millennium and you finally arrive there.

The tribal community lived in the totality of circular time; the farmers of God's universe understood before and after; workers of the clockwork universe lived by the tick; and we creatures of the digital era must relate to the pulse.

The faux now of Twitter updates and things pinging at you - all the pulses from digitality that we try to keep up with because we sense that there's something going on that we need to tap into - are artifacts, or symptoms of living in this atemporal reality. And it's not any worse than living in the 'time is money' reality that we're leaving.

Removed from 'Gmail' doesn't necessarily mean removed from all Google servers. In fact, your old emails are the data set from which Google models our behaviors - the real product it is offering its advertisers.

Virtual simulations allow post-traumatic stress disorder sufferers to re-experience the events that traumatized them, and then slowly desensitize themselves to their impact through repeated recreations involving not just sight and sound but even smell.

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.

While learning to code may have once been an arduous or expensive process, the college dropouts who developed Codecademy have democratized coding as surely as Gutenberg democratized text. Anyone can go to Codecademy and start learning and creating code through their simple, fun, interactive window, for free.