Can I ask a stupid q? Using Wheeler's delayed choice experimental setup, one can vary the path length of one of the legs. This enables making all the photons end up at one detector and none at the other. Is this correct? If so, where did the uncertainty go? Can the interference pattern be manipulated by the experimenter to essentially cancel out the quantum jitters so the photons can be aimed at a silver atom or between silver atoms? Thanks in advance your help.