My physics textbook said waves can exist in the same place at the same time. If that's true, then can light, which is a wave/particle, exist at the same place at the same time with another wave/particle of light? I'm assuming the idea holds true for electromagnetic waves. For some background, I'm a high school student and I'm currently failing physics. But I understand the concepts of physics (it's the mathematics that gets me) probably more than anyone else in the class. :) And this isn't a question necessary for my grade, I just thought of it but didn't think about asking the teacher.