Figure 6.

Conflict events involving both contact and motion-at-a-distance. The top (A) shows motion at a distance followed by contact when A catches up with a slower B. (B) middle shows contact followed by motion at increasing distance due to B moving at double speed. (C) bottom, again shows motion at a distance followed by contact with a slower B, but here, in contrast to (A), the first shape to move is B. (Short and double arrows indicate halved and double speed relative to the standard; numbers indicate the duration in frames of each motion component).