(A) In certain experiments, interference patterns appeared even when which-path information was physically recorded but never consciously observed. (B) The act of recording which-path data can disrupt the photon's coherence, independently of whether the data is retained or reviewed. (C) In quantum eraser setups, interference patterns can be recovered only when the which-path data is successfully deleted before measurement is finalized. (D) In trials where which-path data was physically recorded but automatically deleted before any observation, interference patterns still failed to appear. (E) Interference patterns depend heavily on the stability of the photon source and precise alignment of the apparatus