4-dimensional graph visualization which shows six 2D slices of it at once. A 4D graph consists of nodes (points) and edges (connections) existing in a space with four spatial dimensions: X, Y, Z, and W.
Since we can only directly perceive three spatial dimensions (and display two on a screen), we use a technique similar to how a medical scan (like an MRI or CT scan) shows slices of a 3D body. Here, we take 2D slices through the 4D structure.