Final answer:
Aunt Pearl's reply to Alfred's statement is not provided, but it could potentially express concern or disappointment.
Step-by-step explanation:
Aunt Pearl's reply to Alfred's statement, "I don't know about nothing else," is not provided in the given information. However, based on the context, Aunt Pearl's reply could potentially express concern or disappointment. She may be expressing her desire for Alfred to broaden his knowledge or interests and not limit himself to just boxing. Without further information, it is difficult to determine the exact meaning of Aunt Pearl's reply.