Laure M. Brussolo talks about intelligent stupidity. The more invested we are in our position in society, the higher our rank, the more reluctant we are to admit that we were wrong about something we said or thought. Laure points out that social media have aggravated the problem of intelligent people believing stupid things: because many people publish things on social media under their own name, or commit to a cause with a hashtag, a label or a change in their profile picture, they are not able to admit that they have actually changed their minds, or to withdraw their support for this cause once it becomes clear that it has downsides. This is relentlessly exploited by marketeers to get people to keep supporting causes that are not in their best interest, by encouraging people to publicly commit to them with visible signs, especially on social media. Marketeers have systematically studied the human mind and the ways to manipulate it for decades. You are not smarter than teams of highly trained marketeers, be careful of what you let them put inside your head. https://www.youtube.com/watch?v=2mnjklBgWUU