As a rejection and continuous reframing of theoretical humanism, critical posthumanism questions and imagines the human condition in the current context, aligning it with nonhuman and more than human entities, past and future. While this philosophical approach has been referenced in many academic disciplines since the 1990s, it has been gradually garnering interest among nursing scholars, leading to questions such as what it means to be human and what it means to be a nurse in the here and now. As a deeply ethical and political project, posthumanism, which we associate with poststructuralist concepts of power and resistance, questions the formation of posthuman subjects who more accurately reflect complex times, characterized by capitalistic commodification of life—human and nonhuman. In this article, we aim to explore how the ontological and epistemological underpinnings of critical posthumanism, specifically through Rosi Braidotti's works, can be useful to understand a posthuman subjectivity that favors affirmative actions aimed at actualizing our world in becoming. Through examples in nursing practice, education, and research, we will explore not only how critical posthumanism allows us to frame transformations in the current situation that we are embedded in as nurses and more generally as beings but also how these examples allow us to move beyond critique to the actualization of affirmative actions that correspond to the creation of new worlds.