Group 1 - The concept of "strangeness" has become commonplace in daily life, blurring the lines between strangers and non-strangers, leading to a sense of indifference towards others [2][3] - Young individuals are increasingly anxious about interactions with acquaintances rather than strangers, often maintaining relationships in a state of estrangement [2][3] - The phenomenon of "self-strangeness" emerges, where individuals question their own decisions and feelings, leading to a sense of disconnection from oneself [2][3] Group 2 - In a society filled with strangers, individuals may experience both unease and excitement, but the overarching feeling is one of loneliness and confusion regarding their existence [3][4] - "Reverse empathy" arises from the perception that everyone is too similar, leading to a lack of curiosity and interest in understanding others [4][5] - The idea that "everyone is the same" can result in feelings of isolation, as individuals struggle to find meaningful connections among those who appear similar [5][6] Group 3 - The "utilitarian hypothesis" suggests that individuals focus on relationships that yield tangible benefits, simplifying interpersonal dynamics [6][7] - The process of "de-historization" involves removing aspects of one's life that do not align with mainstream expectations or current interests, leading to a loss of personal history [6][7] - The emphasis on maintaining a polished public persona, including the use of photo editing and social media curation, reflects a desire to conform to societal expectations and erase past experiences [7]