Basecamp CTO David Heinemeier Hansson is known for many things, including creating Ruby on Rails and writing business books. He also has a knack for arguing with people on the Internet. This cheerfully profane conversation explores how Twitter is like a virtual pillow to scream into and the role that extreme voices play in moving important conversations forward. We also relive some of David's memorable Twitter melees, including the one that got him blocked by Paul Graham.