  If static events are admitted, the question arises of whether they should be kept distinct from states (Parsons 1989). One plausible assumption is that the distinction between the static and the dynamic aspects of the world is skew to the distinction between states and activities. As there may be static activities, so there may be dynamic states. Walking is a state of John’s that is dynamic, as opposed to his state of resting, which is static. The walk itself is an activity of John’s that is dynamic, as opposed to the rest he took under a tree, which may be considered a static activity.