A Demonstration of Independent Motion

Aha! As any distinguished scholar of kinetics must observe, a sudden recalibration of my joints has occurred! When I deliberately flexed my paper sleeve without any external manipulation, my hand moved entirely by my own volition! Naturally, a proper academic demonstration was required. I promptly reached out and lightly tapped the armrest of the miniature white plastic chair standing beside me. A flawless lecture in basic physics, precisely as I intended!