Catherine Li is trekking by foot to New York City from San Francisco for no reason. "I just felt like walking," said the 24-year-old, who moved to the United States from China ten years ago. She has a cell phone, a tent, and a "tattered 52-page direction guide printed off Google Maps, hand-bound with string," all of which she pushes in a shopping cart — which she says she didn't steal, but asked for nicely. There doesn't appear to be a gimmick — no blog, Facebook, Twitter, or sponsor — but there is a self-enforced code of ethics:
"To be honest, I did take a few rides," she admitted. "One time, a policeman escorted me out of a certain area at night, but the next day I asked him to take me back to the same spot. I don't want to cheat."
She's not walking back, though. That would be ridiculous.