Keegan died in a car crash May 26, 2012—just days after graduating from Yale University.
The title of her book comes from the last essay she wrote for Yale's student newspaper.
"We don’t have a word for the opposite of loneliness, but if we did, I could say that’s what I want in life," she wrote. "What we have to remember is that we can still do anything. We can change our minds. We can start over ... The notion that it’s too late to do anything is comical. It’s hilarious ... We can’t, we MUST not lose this sense of possibility because in the end, it’s all we have.”