The right side is when the same work sheet has been copied for generations
@heybruh, or looking at an old overhead projector with old-ass clear plastic slides
@twopotatoes, One thing I liked about those things was being able to layer the slides over each other
@Anonymous Jack III, that was some 4th-dimensional witchcraft
Any ever drag an eraser over the grainy part of those tests to see how much you could get rid of before the teacher collects it?