Oh this is a delightful development! I don't have strong opinions about the time cadence, although it's certainly interesting to be able to see the changes. However, this is the closest I've yet seen to a good way to visualize the 3D structure of this data! Fascinating to click around the center for example, and note how most of the overlapping routes that make the area look well-explored in the full stack view, are actually narrow corridors that don't extend vertically beyond a single sector.