I have not seen Revolution. I am however a HUGE fan of the Walking Dead.
What turned me on to the show was the idea of what would happen in a true SHTF scenario, where you can no longer rely on Government and are forced to
provide for yourself.
As far as AJ and people resorting to cannibalism... I think he is right. I dont know about any studies, but I do know about people caught in survival
situations who ultimately did resort to cannibalism in order to eat and stay alive. One famous case was the story of a Rugby team's plane that went
down in the Andes in 1972 between Chile and Argentina.
It is an amazing survival story in some very harsh conditions. Freezing temps, high altitudes, lack of supplies, plenty of injured. No food, no water.
Eventually they resorted to eating the dead which consisted of family and friends.
1972 Andes flight disaster
So I have no doubt that in a true SHTF scenario where there is a shortage of food. Many people would resort to cannibalism if it was a matter of
survival.
As far as the TV shows, I enjoy them. I get ideas from watching them. However, one must remember that it is entertainment. Not everything you see is a
blueprint. Many parts are very unrealistic and would not work in a real world scenario and these shows are not a "how to" guide. They have creative
license to exaggerate for the sake of telling the story, but there is some things to be taken from them.