The document proposes an interactive experience called the "Festival du Mot" that allows users to collectively create memories. Users would be able to share souvenirs like songs, videos, and pictures on the website or app. The app would also offer immersive excursions where users can be guided through and comment on shared souvenirs. The goal is to plunge many people into an unexpected yet personal and collective experience by awakening memories and nostalgia. The project takes inspiration from Georges Perec's book "I Remember" about collecting personal yet shared memories from one's childhood.