>There's an element of truth in that, however the camera and lenses >are not connected to our brains and not always what we see,
The eyes are connected to our brains and if we were sightless then all of this would be for naught or at least very very difficult. Information captured by our brains via our eyes is absolutely essential to all decision making. We can't work cameras or computer programs without them or create meaningful Nef's. We wouldn't even be able to create these things without sighted persons. Even if the computers create "perfect" graphs we need eyes to see them. What came first? The chicken or the egg?