Well, some folks rely too much on electronics and forget to "think like a fish". Or he may just be so familiar with the area over the years he knows the "sweet spots" I know around here alot of the older folks know what the land looked like before it was flooded for Falls lake and can put you on old ponds, graveyards, building remains/chimenys or farm equipment left behind and put you on fish in seemingly open water with no electronics...
Three-fourths of the Earth's surface is water, and one-fourth is land. It is quite clear that the good Lord intended us to spend triple the amount of time fishing as taking care of the lawn. :rolleyes: