this post was submitted on 07 Dec 2023
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Physics

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Light Can Travel Backward in Time (Sort Of) (www.scientificamerican.com)
submitted 11 months ago by [email protected] to c/[email protected]
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[–] [email protected] 3 points 11 months ago* (last edited 11 months ago)

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