This paper examines the current state of second-generation Human-Computer Interaction (HCI) theory and its challenges in the face of the third wave, which broadens the use context and application types. The third wave, characterized by the integration of technology into daily life and culture, introduces new elements such as culture, emotion, and experience. The paper discusses the concepts of multiplicity, context, boundaries, experience, and participation to explore how second-generation theory can contribute to addressing these challenges. It highlights the need for a more flexible approach to user interface design, recognizing the presence of multiple mediators and the blurring of work and non-work contexts. The paper also emphasizes the importance of emotions and experiences in HCI, suggesting that design should focus on felt life and reflexive practices. Finally, it calls for a re-evaluation of the role of human actors in design, advocating for a more holistic and participatory approach that considers users' entire lives and transcends dichotomies between work and leisure, rationality and emotion.This paper examines the current state of second-generation Human-Computer Interaction (HCI) theory and its challenges in the face of the third wave, which broadens the use context and application types. The third wave, characterized by the integration of technology into daily life and culture, introduces new elements such as culture, emotion, and experience. The paper discusses the concepts of multiplicity, context, boundaries, experience, and participation to explore how second-generation theory can contribute to addressing these challenges. It highlights the need for a more flexible approach to user interface design, recognizing the presence of multiple mediators and the blurring of work and non-work contexts. The paper also emphasizes the importance of emotions and experiences in HCI, suggesting that design should focus on felt life and reflexive practices. Finally, it calls for a re-evaluation of the role of human actors in design, advocating for a more holistic and participatory approach that considers users' entire lives and transcends dichotomies between work and leisure, rationality and emotion.