Since her childhood in 1970s San Francisco, critic and poet Maggie Nelson has been mulling the concept of freedom — particularly how we define, practice and experience it. She sat down with NPR's Ari Shapiro to talk about four areas in life — art, sex, addiction and climate change — and how we talk about freedom in regard to our collective wellbeing and individual rights.Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)