Hello. I found it very strange that matter behave as a wave and started thinking a lot... I have seen a video previously explaining this experiment and when I saw this: In red is the first path and in blue the second path. Could it be the answer? At the end of the video, in the screen of the experiment, we can see two big lines and at the edges lines that goes lighter just like experiments using electrons. Also the electrons are small, so if they collide with wall they would be a bigger pattern just like in the double-slit experiment. No? Thank you.