This matrix visualization maps friendships between 58 Facebook users, with each of the 3,980 rows in the dataset representing a directed edge from one user to another. The visualization uses a 64×64 adjacency matrix where dots are plotted at coordinates corresponding to user IDs, revealing the network's structure through the resulting point pattern. The data, sourced from a gist by ByronHan333 under the MIT license, shows clustering patterns along the diagonal with notable outliers, as connections are concentrated among users with similar ID ranges. The sparse scatter of points across the matrix highlights the social graph's density variations and community structure inherent in the Facebook friendship network.