When you play poker you make decisions based on imperfect knowledge.  You assess risk.  It helps to have a lot of chips, so you can take more chances.  The players of this particular game have all left or are about to arrive or are taking a break or are invisible.  Lady MacBeth sings from time to time, when she has an audience.  The motion sensors, the record player, the lights, the clock and the mirror each keep track of a different time.  Nothing else moves.  (Installation.  Related video project: Shuffle & Deal).