photography is difficult to understand, because it is so easy to do. So easy to represent, that it must mean something easy, direct. The this is the that. This is part of the burden. The language of light is arbitrary and transient. Eventually talking about a picture seems like talking about magik, something out there becomes something here. And then wave your hands around a lot. Poof, you have a print

if the photograph is truth, do you have to answer why?
what are the characteristics that make a photograph truth. what is the link of the photograph to the viewer. must you believe the photograph, as you must believe truth