B.5.QD:2 - Problem

“Find the next interesting problem” leaves the crucial work undone. Many variations merely change a number or a name. Others repeat a failed claim with a convenient exception, ask for information the available description cannot determine, or generate questions whose answers would add nothing to the inquiry.

A useful next question grows from a consequential change: an exposed dependency, a new object or operation, a newly distinguished case, or a result that can be used elsewhere. The difficulty is to construct that question while preserving what the earlier work established and keeping a feasible point of entry.