[withinboredom]

Interesting! My sense of “depth” is highly correlated to how “foundational” the code is. Meaning that changing “deep” code will require changing lots of things to keep things working or may break unrelated things far away (sorta like brittleness).

[taeric]

This makes some sense. That said, I also view it similar to how you would consider a keystone on an arch. That is, it may be something at the surface, not necessarily down below. (Which gives the tell that I view depth as down. I'm realizing as I type this that that is not necessarily true.)