Lin Daiyu was the granddaughter of Grandmother Jia, and Jia Baoyu was Grandmother Jia's grandson. From a scientific point of view, were they suitable for marriage? Why?

From a scientific point of view, they were not suitable for marriage. Lin Daiyu and Jia Baoyu were born in the 18th and 19th centuries respectively. Modern science believes that human life expectancy is generally around 20 to 30 years old. Therefore, within this time frame, Jia Baoyu was already over 30 years old while Lin Daiyu was only around 20 years old. The age gap between them was too big, which was not conducive to their health and marriage. Lin Daiyu was a sensitive and fragile woman. She needed more love and support. Although Jia Baoyu was a gentle and kind man, his character might not be mature enough to provide a sense of security and stability. The age gap in marriage could cause stress and challenges in their relationship. From the perspective of literary works, the emotional relationship between Lin Daiyu and Jia Baoyu is a complex theme. The feelings between them may have many different emotions and motives. In literature, their relationships are often influenced by social, cultural, and personal factors. Therefore, from a scientific point of view, whether they are suitable for marriage may require further exploration and research.