Hey guys, I'm new to this forum. I make YouTube videos where I talk about science in video games / pop culture. Being a mechanical engineer I can usually get by pretty good, but this one has me totally lost. Could the Halo energy sword actually exist and if so, how could we (or the universe) possibly do it. One theory I've seen was have oscillating transverse electromagnetic waves in the fourth dimension (?). Apparently there is something like this proven by Einstein that matter is a three dimensional representation of four dimensional energy. Any help / suggestions for this video topic would be greatly appreciated :D P.S. I'll link my channel if anyone is curious, but I won't unless someone asks so people know I'm not advertising.