Light Can Travel Backward in Time (Sort Of)
https://www.scientificamerican.com/article/light-can-travel-backward-in-time-sort-of/Open linkView original on mander.xyzhttps://www.scientificamerican.com/article/light-can-travel-backward-in-time-sort-of/Open linkView original on mander.xyz
This video helped me understand the concept of looking in a mirror and seeing the back of your head:
https://www.youtube.com/watch?v=vFNgd3pitAI