In a reprise of this classic conversation with Anthony Magnabosco, we talk about a conversational tool which can change the course - and productivity - of those most difficult exchanges, the ones between people who disagree on fundamental things in life. Anthony is an advocate of 'street epistemology', and it could be a very useful idea in these divided times. This is the first of two 'classic' episodes we're posting on the topic of better conversations. We hope it'll help you think about how to engage with people more productively, and enable some good interpersonal outcomes.