IN our celebrity-studded world, where we make a cult of genius and individual achievement, the mind rebels at the notion that geography trumps personality. Yet the inescapable lesson of the iPod, Google, eBay, Netflix and Silicon Valley in general is that where you live often trumps who you are.

Just ask Sim Wong Hoo. About seven years ago, I met Mr. Sim in Singapore, where he was born and was then living. He talked about the rising creativity of Singaporeans and with a flourish, as if to dramatically make his point, he pulled out a prototype of a hand-held music player that he insisted would replace Sony’s famous Walkman.

Mr. Sim’s device was breathtaking, possessing all the elements of what we now know as the MP3 player. Yet today, a Silicon Valley icon, Apple, dominates the market for MP3 players with the iPod. In recognition of its emergence as a music powerhouse, last month Apple dropped the word “computer” from its name.

Some months after my Singapore encounter, I visited the thriving code-writing communities in Tallinn, Estonia; Reykjavik, Iceland; and Helsinki, Finland, three Nordic cities that were being transformed by advances in cellphones, mobile computing and the Internet. Their tight-knit network of engineers seemed poised to create the tools required to make good on a much-hyped prediction: the death of distance. After all, if necessity is the mother of invention, no one had more need than the hardy Estonians, Icelanders and Finns, living on the frozen edge of Europe, when it came to killing distance as a barrier.