Here's a collection of optical illusions which illustrate that the eye can indeed be manipulated, it's just a matter of finding the right angle. Of course, the same idea can be looked at as a metaphor of all the manipulations we witness every day in all parts of the social life - from politics, to music and even to love.
BIG BROTHER only shows us the side that the Party wants us to see - just like in the fitness world: you see the muscle but you don't see the needles, the prostitution, the dealers, the illegal activities, the lawyers covering the tracks of supplement companies...etc.
"In a time of universal deceit - telling the truth is a revolutionary act." - George Orwell