This weekend we're rerunning an interview with Cal Newport who joined us a while back to talk about his latest book, A World Without Email: Reimagining Work in an Age of Communication Overload.Modern knowledge workers communicate constantly. Their days are defined by a relentless barrage of incoming messages and back-and-forth digital conversations, a state of constant, anxious chatter in which nobody can disconnect, and so nobody has the cognitive bandwidth to perform substantive work.We have become so used to an inbox-driven workday that it's hard to imagine alternatives. But they do exist.Have a money question? Email us, ask jill [at] jill on money dot com.Please leave us a rating or review in Apple Podcasts."Jill on Money" theme music is by Joel Goodman, www.joelgoodman.com.