The new series Emotions 2.0 has begun with a double episode focusing on emotions experienced with other people. Emotions like happiness or sadness are often thought to be individual experiences, but they can also spread through crowds in powerful ways. Psychologist Amit Goldenberg studies how emotions spread and intensify as more people experience them. The episode features an interview with Goldenberg to explore this topic. Additionally, the episode includes a conversation with anthropologist Dimitris Xygalatas, who studies the emotional power of rituals. Xygalatas' conversation was originally recorded in 2022 and is being replayed in this episode. The episode explores the world of fire walking to understand the emotional impact of rituals. The Hidden Brain podcast is supported by its listeners, who can become members of Hidden Brain+ for bonus episodes and exclusive content. Membership can be obtained through Apple Podcasts or the podcast's Patreon page. By supporting the podcast, listeners can help ensure the continuation of the show and its exploration of ideas and insights.