In the era of longevity and experience economy, our social infrastructure has been reshaped by disruptive demographic shifts, the aging population, emerging immersive technologies, climate change, digital transformation, evolving education platforms, and many other factors. Consequently, the Design for Longevity (D4L) perspective has emerged as a pivotal lens, offering individuals comprehensive insights to navigate the complicated, systemic challenges that intertwine social, technological, cultural, and political issues, including gender equality. This study leveraged boundary objects, known for their interpretive flexibility, to enable the integration and exchange of knowledge. This flexibility allows for various interpretations to emerge from the same information and facilitates translation across individuals or communities from diverse backgrounds. Specifically, the author utilized 12 Design for Longevity (D4L) cards as boundary objects and applied a think-aloud methodology in six participatory workshops, combining the results with surveys and semi-structured interviews. These cards elicited participants’ narratives and perceptions related to D4L and facilitated their collective sense-making and knowledge translation with respect to gender equality (GE). The research explored the potential and limitations of D4L cards as boundary objects in empowering individuals to envision their future selves within the contexts of D4L and GE from three studies in collaboration with the Taiwan Design Research Institute in Taipei, Taiwan, the Design Management program at Macromedia University in Cologne, Germany, and the Social Design Hub at the Moholy-Nagy University of Art and Design Innovation Center in Budapest, Hungary.