How can one visualize Theorem 4.2 on page 31 of this paper by Seregin, Silvestre, Šverák and Zlatoš?
On the other hand, I have a clear visualization of a related result about how oscillation decay implies HolderHölder regularity (which is illustrated, for example, in Figure 2.2 on page 30 of FrenándezFernández-Real and Ros-OtonOton's lecture notes).