9.14.16 The eye and the brain

"Because of the finite velocity of light, and the delay in neural messages reaching the brain, we always see the past. Our perception of the sun 
is over eight minutes late; all we know of the furthest object visible to the unaided eye (The Andromeda Nebula) is so out of date that we see it 
as it was a million years before we appeared on earth. “ 
         R.L.Gregory Eye and Brain, The Psychology of Seeing