My research partners and I have found that many people struggle to understand the fundamental operation that we are studying. Because of this I have been spending time trying to develop better explanatory tools. This animation is something that we think does a good job of providing a purely visual explanation of what we are studying, but we would love your feedback. 

Just by watching the animation below, are you able to recognize and describe the operation being repeated here? note: this does not require you to be able to explain the resulting structure (that's what we are working on!)

https://media.mathstodon.xyz/media_attachments/files/111/076/273/128/465/699/original/a8f43562d6f5b4ef.mp4