Poet Franny Choi knows that marginalized communities have been facing apocalypses forever. But in her new book, The World Keeps Ending, and the World Goes On, she uses their survival as a way to look forward. In this episode, she tells NPR's Leila Fadel how understanding that pain and resilience can ultimately be a source of hope. Then, former U.S. poet laureate Billy Collins discusses his new collection of very short poems, Musical Tables, with NPR's Scott Simon – and gets into the complexities of how sometimes saying less can offer so much more.