The Debrief revisits each presentation from our 2026 Summit, one speaker at a time. In Part II, Falk Mersmann examines how the muscle-tendon unit actually behaves—not as a simple spring, but as a system that reorganizes itself to meet the task at hand, whether the goal is conserving energy, producing work, or generating maximum power. Read this edition with full references at traversecitytendonsummit.com.