This chapter takesRhythm usTechnique from designsDesign in space to designsDesign in time. The focus is on the frequencyFrequency of body movementMovement. Several features account for diversityDiversity in the rhythmRhythm of the moving cycle: arms, legsLeg, body architectureBody architecture, pulling oarsOars (rowingRowing), and so on. With animalAnimal and human examples from swimmingSwimming and flyingFlying, we discover the relation between greater freedomFreedom and greater diversityDiversity in lifestyleLifestyle, training, techniqueTechnique, performance, technologyTechnology, and roboticsRobotics. The chapter continues with the birthBirth of diversityDiversity in the rhythmsRhythm in each of us: inhaling & exhaling, heart beatingHeart beating, workWork & rest, and so on. By contemplating more complicated models of rhythmic motionMotion we discover the role played by techniqueTechnique in body movementMovement (locomotionLocomotion, animalAnimal, or artifactArtifacts). A more powerful techniqueTechnique comes from more freedomFreedom to make changes. We learn that rewards in performance come consistently from greater freedomFreedom to morph the designDesign.