One day, Sonja decided to head down to City Hall to testify in favor of apartment buildings for the people who hadn't yet moved to San Francisco. She was a schoolteacher who had moved to the Bay Area from Philadelphia for economic opportunity and was shocked by the reflexive opposition to new housing. In the podcast, Sonja talks about why urban housing matters, but it's even more fascinating to listen to Sonja's intuitive, fearless, and funny take on how to organize on a controversial issue. And this YIMBY thing is taking off. She's been covered in the New York Times, activists are organizing in other cities, and there will soon be a National YIMBY Conference.