Professors live on campus, too, creating an intense, if insular, educational experience.

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Accelerators typically target 20-something entrepreneurs with high-tech innovations who live on the accelerator campus, eat ramen noodles and work 18 hours a day to hone their businesses.

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Its population of 56, 000 does not include the students, faculty and staff who live on the sprawling, adjacent campus of Stanford University.

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Many live and work on a company campus.

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