Over the years I have had political and ideological discussions with at least three groups of people and have concluded that these discussions are, almost entirely, futile in making people either see things differently, or acknowledge that others may see things differently, or -God forbid-- change their opinions however slightly. That of course opens the question how people come to hold certain political and ideological positions—since at some level they must be influenced by views of others: their parents, family, school, and even random interlocuters. I do not have a good explanation for that. I think that reading, watching, listening and thinking does lead people to form and then to change opinions but I am very sceptical that direct discussion does it. The former methods are indirect: one reads an author and finds him convincing; but if one has a discussion with somebody acknowledging that that person has produced valid arguments appears to diminish him compared to the other...