Well, it would be interesting if there was some good altered pictures to mix with some un altered pictures as a test to see if people could really tell the difference between the real and the fake altered photos. I can look at a magazine cover and tell it's fake right away. For one they don't have skin pores or acne scars, not even peach fuzz. Others are harder to identify. The magazine isn't trying to trick a pro who knows what to look for(just make it look dreamy). I'm talking about not loading it in a program and looking at it on a monitor. Just the naked eye. Simple yes or no answer. I'd say the percentage would work out at about 50% right and 50% wrong because that's the average you might get when people guess.