Using clear vision you can gather all sorts of information from a topographical map. You can plot grid coordinates to a specific point, and make detailed measurements and calculations.
But ask your scout how to use the map and navigate; he’ll stow the compass, orientate the map then blur his eyes.
You see, in order to focus on the terrain and the map’s ability to give you a mini 3d representation of the land around you, you’ve got to alter your perception.
Lightly blurring your eyes but keeping the brown elevation lines in mind filters out everything but what you need to see, in a way that makes multiple lines close together appear darker. The darker shade denotes steeper inclines, cliffs and valleys.
Sure, you can drill down on the vast amount of information you have in front of you. You can get overwhelmed by data that’s totally irrelevant to your goal. Or you can learn to filter what you need for the task, even altering your perception a bit in order to make what you need come into a different (more effective) focus than you are accustomed.
Clarity is great, but it’s not the golden goal we’ve been tricked into believing it is.