Neuroscience in more recent times has shone a light on the incredible capacity of the human brain to adapt and relearn by stimulating old pathways and lighting new ones.
Our survival over millennium depended on physical and mental agility, on heightened sensory abilities such as touch, hearing, seeing and importantly the capacity to retrain and improve those attributes. While humans have evolved with limited sensory capacities compared to other animals in the evolutionary chain, it could also be said that the modern era of multi faceted visual stimulation has desensitised and accelerated that process. Nevertheless, we as a species continue to strive to understand and improve all our facilities and our position in the unfolding story of our planet.
Human sight varies enormously from person to person not just in a physical way but through the subjective mind. The subjective mind takes control and defines what we see according to what we know about that thing, not what we actually see. In other words, what we see is imbued with our own experience. We know that if we were to pick up a bottle we would find it cold with hard edges all around. But is this what we really see? Looking and experiencing with an invigorated eye the bottle looks completely different because of the way light falls on it, making parts of the bottle blend in with the background, thus it is only partly visible.