The Economist's Valley correspondent reviews the last six years:

And so, as this correspondent prepares to leave, the Valley again finds itself in a curious position. It has been a boon to the world, helping people keep abreast of acquaintances on their social networks, wherever they go, and record and share much more of their own lives. But the Valley stands on ground that is as unstable, seismically and metaphorically, as it was in the earlier bust. Another bubble—this time, not of the Valley’s making—has burst. The world economy is in crisis, advertising is collapsing and start-ups are once again vanishing into thin air. Silicon Valley may be entering another nuclear winter.

Recently:

I thought I was unlucky graduating into the tech bust. I had no idea.

Two from last year:

Get real or go home.

It was so obvious it was going to fall apart eventually. What is so amazing is how long it took to actually happen.

From the archive, Ted Koppel to Malcolm Gladwell, via Tom Friedman:

Can you know you are in the middle of a tipping point, or is it only something you can see in retrospect?