Final answer:
Jaden's proficiency in computer repair seems to be an example of crystallized intelligence, which is the accumulation of knowledge and skills over time. Conversely, his struggle to learn sewing, a novel skill for him, is a typical challenge associated with fluid intelligence, which often diminishes with age.
Step-by-step explanation:
Jaden's ability to repair computers quickly and learn new repair techniques fast has become a crystallized intelligence. This form of intelligence refers to skills and knowledge that are gained through experience and education, and can be applied to problem-solving in familiar contexts.
In contrast, his slow progress in learning to sew, a completely new skill set for him, represents a challenge often associated with fluid intelligence, which is the capacity to think logically and solve problems in novel situations, independent of any knowledge from the past.
Fluid intelligence typically peaks in young adulthood and gradually decreases over time, which might explain Jaden's difficulty in picking up a new skill like sewing at a middle-aged stage in his life.
It is important to note that the capability to learn new skills, such as sewing, can be influenced by various factors including prior exposure to similar tasks, intrinsic motivation, the complexity of the new skill, and even the methods through which the skill is being learned.