In an extended interview with Yanis Varoufakis, member of the Greek Parliament and former finance minister of Greece, we discuss his new novel, “Another Now,” and why he chose to write fiction after years of nonfiction. “All my life as a lefty, I had to find ways of escaping the poignant question: 'If you don't like capitalism, what is your alternative?’” Varoufakis explains. Now 60 years old, he describes how he explored the answer through the characters in his book, some of whom are based on real people.