What Jack Dorsey's departure means for Twitter and Silicon Valley Published November 30, 2021 at 1:40 PM EST Facebook Twitter LinkedIn Email Listen • 9:32 Twitter co-founder Jack Dorsey. (Joe Raedle/Getty Images) Here & Now‘s Callum Borchers speaks with Nick Bilton, Vanity Fair correspondent and author of the book “Hatching Twitter,” about Jack Dorsey resigning as CEO of Twitter. This article was originally published on WBUR.org. Copyright 2021 NPR. To see more, visit https://www.npr.org.