Horizon

There are limitations on man. I once read somewhere that our eyes have this inbuilt desire to see perspective. We cannot imagine a picture which has two vanishing points. Never will we see parallel lines that do not meet. Yet another place I read that a man wore glasses that inverted the image of the world for him all the time for two weeks and at the end of two weeks his vision had returned to normal, right side up. Now when he took his glasses of again he had the same problem that the world appeared upside down but it soon returned to normal. If our eyes can compensate for such an event I am sure they have the ability to see multiple vanishing points in images. Our horizons are broad indeed and anyone who uses the limitations his physical body or his mental organ imposes then he is for sure putting forward a rather weak arguement.