That moment when a student accidentally asks a question that would require explaining general relativity, spacetime curvature, and the dual wave-particle nature of light all in one go. The teacher's face says it all—pure existential panic.
The truth is, light doesn't have rest mass but it DOES have energy, and according to Einstein's famous E=mc², energy and mass are equivalent. Black holes don't technically "attract" light—they warp spacetime so severely that light's path bends toward them.
But try explaining that to 16-year-olds who still think the mitochondria is the powerhouse of the cell is the pinnacle of scientific knowledge. No wonder the teacher looks like they're contemplating a career change to literally anything else.