It’s the official launch of “Dear Guy,” TED’s new advice column from NYC psychologist Guy Winch. This week, he counsels a chronic canceler.

In her blockbuster TED Talk, Susan Cain has a call to action: Take introverts seriously, and understand what they can do in the right environment. Ben Lillie called her up for an extended conversation about the terrors of public speaking, how her issue is one of civil rights, and the neuroscience behind personalities.