digital and analog technology

1) what digital and traditional technology can both do to a picture is to change the size, the light, the color of the whole picture.
2) photographic techniques can almost do anything, only if people came up with ideas. It changes everything everywhere. people say photograph is really powerful, and I can't agree more.
3) It's hard to tell the difference between those two forms based on pictures only. The skill of dealing with pictures by digital technology makes huge progress that sometimes people may be mislead. I think digital pictures are more likely to be ART works while traditional pictures aims at recording the truth.