o Intensity readers should be constrained on the x-axis when in side-view. o Add vector view to photon view. o Add full field to photon-view? This would require a major rewrite of the model (which is now 2-d and nonvectorial). Is this really what we want here? o Should we show intensity readouts anywhere, or just wave values? o How to control frequency/amplitude when there are two wave sources? o We could get rid of edge effects by maintining a higher lattice than is shown on the screen. o Add correct units to measuring tape. o Add correct units to stopwatch. o Barrier, multiple sources should disappear for rotate wave.