Much of The New New Thing, to be fair, is devoted to the Healtheon story. It's just that Jim Clark doesn't do startups the way most people do. "He had ceased to be a businessman," as Lewis puts it, "and become a conceptual artist." After coming up with the basic idea for Healtheon, securing the initial seed money, and hiring the people to make it happen, Clark concentrated on the building of Hyperion, a sailboat with a 197-foot mast, whose functions are controlled by 25 SGI workstations (a boat that, if he wanted to, Clark could log onto and steer--from anywhere in the world). Keeping up with Clark proves a monumental challenge--"you didn't interact with him," Lewis notes, "so much as hitch a ride on the back of his life"--but one that the author rises to meet with the same frenetic energy and humor of his previous books, Liar's Poker and Trail Fever.

Like those two books, The New New Thing shows how the pursuit of power at its highest levels can lead to the very edges of the surreal, as when Clark tries to fill out an investment profile for a Swiss bank, where he intends to deposit less than .05 percent of his financial assets. When asked to assess his attitude toward financial risk, Clark searches in vain for the category of "people who sought to turn ten million dollars into one billion in a few months" and finally tells the banker, "I think this is for a different ... person." There have been a lot of profiles of Silicon Valley companies and the way they've revamped the economy in the 1990s--The New New Thing is one of the first books fully to depict the sort of man that has made such companies possible. --Ron Hogan

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