We continue through Building 2 toward Hayden Library, where I discuss the humani­ties at MIT, and then out to the Green Building, where I talk about how the Time Travelers' Convention made it into the New York Times. I also tell a great rendition of the Caltech cannon story, during which I manage to talk about Campus Preview Weekend, the brass rat, free printing on campus, and the MIT Police.

This, however, is probably not as memorable as the story I tell about my quest to make some extra money for my caffeine fund, which starts with a job at the front desk of my freshman dorm and ends with me in a human centrifuge experiment somewhere near Building 37. Next we head to the Stata Center and then Barker, where I offer a thorough explanation of the significance of the Möbius strip.

As we reach West Campus, I spring my quiz. The first question is to guess the number of stories in Simmons Hall--someone once guessed 96--to win a high five. The second question has two parts. During part A, people raise their hands if they have taken physics. In part B, I ask those who have taken physics to volunteer to answer a simple question about the properties of reflection (the answer is "angle of incidence equals angle of reflection"), and then I lead them past the moat.

I end with the story of the Smoot--one that I think proves you can enter MIT as an ordinary person and, if you so desire, become a legend.

If not, there's always tour guiding.

Chemistry major Sarah Proehl '09 can be seen on Friday afternoons walking backwards through the Infinite. She plans to attend medical school next year.