The time coming when we can't believe our eyes is here, but it has been for awhile now. Take David Copperfeild for instance and other magicians. You touched on the reason it disturbs me. It's about photoghraph credibility. The other is that people are getting desensitized. Accepting it as real. 

What happens to the human mind when it is surrounded by lures and lies on a constant daily basis. Can we live with our guard up every minute? Is it healthy looking at every add and photo in a magazine knowing within ourselves that it only looks that good because they made it look better than it really is. It's not a cartoon picture. It's a perfect looking juicy burger with a super model taking a bite or a huge billboard sign with a bunch of shrimp on the barbie. Nobody can hide. I've been fooled a time or two myself by these advertisements. Everybody gets hungry. : )