In this hand drawn animation a line is being extrapolated through a grid. When the line surpasses the boundaries of the grid, the process spreads to and reflects on its surroundings. Beyond each boundary the extrapolation of movement is causing deformation in a systematic but speculative way.
More info: notes-extrapolate - Directors Notes
Heart of Darkness Dehumanization Project : Time-Lapse
Time Travel in Fiction Rundown
PRIMER (2004) - ILLUSTRATED EXPLANATION