There's Silicon Alley, Silicon Forest, Silicon Prairie. Will any of them or a dozen other pretenders to the throne ever unseat Silicon Valley? In an essay in the Sunday Times, G. Paschal Zachary says, it ain't gonna happen.

The reason for that is simply the sheer density of ideas, money and people in the Valley, the continual draw of entrepreneurs here.

Google’s astonishing rise and Apple’s reinvention are reminders that, when it comes to great ideas, location is crucial. “Face-to-face is still very important for exchange of ideas, and nowhere is this exchange more valuable than in Silicon Valley,” says Paul M. Romer, a professor in the Graduate School of Business at Stanford who is known for studying the economics of ideas.

In short, “geography matters,” Professor Romer said. Give birth to an information-technology idea in Silicon Valley and the chances of success seem vastly higher than when it is done in another ZIP code.

Why does geography matter so much? Increasing returns and first-mover advantage, says Zachary.

“All that venture capital attracts a lot of ideas — and the people who are having those ideas,” said Stephen B. Adams, an assistant professor of management at the Franklin P. Perdue School of Business at Salisbury University in Maryland who has studied the rise of Silicon Valley.

Newcomers plug into an existing network of seasoned pros that “isn’t matched anywhere else in the world,” says AnnaLee Saxenian, dean of the School of Information at the University of California, Berkeley, and author of “Regional Advantage,” a book about the competitive edge held by tech centers like Silicon Valley and the Route 128 suburbs near Boston. “That allows people to recombine technical ideas much more quickly here than anywhere else,” Professor Saxenian added.

“In terms of creativity, the Valley remains as far ahead of the rest of the world as ever,” she said. “People in the Valley generate new ideas and test them much more quickly than anywhere else. They aren’t a super race; it’s their environment.”

Even as Iceland or Ireland or China or India threaten to emasculate the Valley, even as the Dot Bomb has etched Vietnam-level trauma into people's consciousness, the Valley keeps coming back.

Every time Silicon Valley recovers from failure, it seems to grow more durable, almost in the same way a person becomes “immune” to a disease after a brush with it.

Fifty years ago, chips were the engine of Silicon Valley. In the late 1970s came the personal computer and data-storage drives, then software, and more recently the dynamic vortex of the Web, new media and online commerce.

In the case of Silicon Valley, the world rightly waits for the flame of creativity to burn out. That’s fair enough. To each, a season (or maybe a few). Living long and large, Silicon Valley surely will wither like a dead flower someday. My advice, though, is: Don’t hold your breath.