"I didn't know there were this many math guys," Hale said as they stepped onto the crowded concourse. Kat cleared her throat. "And women," he added. "Math women."

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Because it was starting to get dark, and because the streets were crowded, I bumped into a googolplex people. Who were they? Where were they going? What were they looking for? I wanted to hear their heartbeats, and I wanted them to hear mine.

— Jonathan Safran Foer