1. I've looked at a beginner guide to quantum mechanics and a saw the probability illustration of an atom. It didn't seem quite continuous what leads me to the question: Is the motion of quantums discrete? 2. How do we know quants exist if we can't see them? 3. How do I have to visualize electromagnetic waves? After all, they have to be spacial, and space can be displayed with geometry - and geometry is rational. How thick are the layer waves in width? What's the radial displacement angle between two electromagnetic waves emitted from a diffuse light source? If they are an in-between of particle and waves: What is the in-between?