Imagine you are in a dark field. A man with a flashlight is looking for you. you sse the light from his flashlight. doesn't this mean he should be able to see you? after all, photons are reflecting off of you if his light reaches your eyes. Or is it simply that his eyes have adjusted to the brightneas of the objects he is directly shining his light on? sorry for any typos, on my phone and the text doesn't show, om typing blindly here.