Yep, once anyone can download an app on their phone and do something like this without any effort in realtime it’s going to lose its (shock) value fast. It would be like sketching a crude boobs and vagina on someones photo with MS Paint and trying to use that for blackmail or shaming. It would just seem sad and childish.
Right, so the light is actually pushed up by these buoyant forces and I guess that then also explains why it’s so dark underground. Fascinating how learning some little new details about the world can sometimes make it all just click together!
But does that mean that light is actually hollow?