
I'm not a student, I am quite old and in the world of Physics, I'm dumb. I have a question that is not homework, I'm just trying to figure out how it is possible.
I am currently watching a video. It shows a man on a motorcycle at night. There is no 2nd person, but a 2nd person shows up in the shadows.
Is there any possible way for something without mass to cast a shadow?
https://www.youtube.com/watch?v=DFx88Bvyjos
It starts at 18 seconds in and lasts a couple of minutes. I just want to know if this has an answer or if it's just weird.
TIA for my dumb question!