Juan Enriquez, the author of The Untied States of America, says the only thing for certain is change.

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But the 92121 zip code--located some 25 kilometers north of downtown, east of the rolling mesas of La Jolla--boasts 89 biotech companies, the most densely packed cluster in the U.S., says Juan Enriquez, director of the Life Science Project at Harvard Business School.

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When you spend time in Human Face, you are struck not only by the spectacular photographs, the graphics and short essays from the luminary thinkers such as Juan Enriquez and Esther Dyson, but also by the audacity of the project itself.

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