Holden McGroin – LOL, Fantastic Response!
Zorstorer – Yes, that is pretty much it.  I think our eyes do the same thing.  I asked my 7 year old daughter to look at the picture of the model boats; she was convinced it was a model.  I know that she does not have enough experience looking at pictures of models and dioramas to have developed a mindset that short depth of field comes from close up pictures of small things…   She had to have developed this idea naturally by looking at real world things up close.