The 15-minute rule is a simple yet effective strategy for learning and problem-solving in teams. It involves taking 15 minutes to solve a problem on your own before seeking help, which teaches the skill of self-sufficiency and forces you to reach out when needed. This approach has multiple benefits, including navigating internal codebases and documentation, being armed with context when asking for help, and striking a balance between working independently and seeking assistance from teammates. By following this rule, individuals can supercharge their personal growth, respect colleagues' time, and ultimately become more effective problem-solvers in teams.