“Things I know” is an installation constructed by a soundscape and a garden implantation, which seeks to continue expanding N0collective’s creative path. For its creation, we were inspired by the dramaturgical material present in the play “The things I know to be true” by Andrew Bovell, creating a “sonic garden”. Bringing together four types of plant species, which can change in each of the installations of the piece, we had situated among them four conversations with collectives and individuals about the themes of toxic masculinity and its relationship to narcissism and addictions, the gender gap in the field of motherhood, transsexuality and its profound relationship to identity and legal procedures to achieve it, and the relationship of all these themes to the future, this last one made through discussion with a group of people under the age of twenty-five.