I'm glad I shared this thread too. I think the information struck me interesting because I could start relating more to depth and really start taking into consideration the water column. As anglers we are in a boat, or casting from shore and all we see is a vast blanket of water. Sure we can see under a little depending on water clarity, brightness of the sun, or with the use of polarized sunglasses, but we don;t really know what goes on under the surface as much as we like to think we do. We have to start thinking where we are in relation to the fish, and how we can get to them, meaning get our lure to them. And to do this effectively we must think about where the fish is in relation to us, where they are in the water column, how are they related to structure and cover, what are their activity levels, and what is the best lure to tempt their inner most hard wired predatory instincts.
The more fisherman use their imagination and put together an image in their mind about what is actually going on below the surface, the better they will become at fishing. We need to start seeing the unseen. This is why anglers use GPS and sonar fish finders as well as the use of the under water camera. But we do not see in graphs, or sonar blips. We can see these images on a screen and put together what they mean, but they do not immediately translate to how we would see the image with our own eyes. And that is what must be down, we must take any and all raw data we are provided while fishing, and put it into the most understandable image as possible.