The photon particle vs wave experiment is indeed eye opening but the whole experiment is based on the ability to extract the behavior of a single photon that is traveling at the speed of light. I am not convinced that the experimenter will be effective at changing the set up of the experiment once the photon particle has already entered the mirror. As with quantum science and theory of relativity, we have to have a major leap of faith that under those conditions matter will behave a certain way theoretically.

Thank you for sharing this interesting experiment.