surprised to not see hilbert curve mentioned here
https://corte.si/posts/visualisation/binvis/
Ps: I had the exact same thought!
Also: can programs be encoded into lossy image formats? Would be cool to see what image compression does to program functionality
However, I almost always switch it into the linear view. Hilbert curves are cool but I've never really found any benefit, and it makes it harder to intuit things like how far a particular feature is into the file, or whether two features are actually nearby (while near things in linear-space are typically near in hilbert-space, there are discontinuities).