The way people were handled and manipulated by Nazis and the Stalin regime have many similarities with the treatment of livestock. The similarities are not only between slaughterhouses and the extermination camps, but also the way the victims were manipulated before reaching the kill zone. One of the ideas presented by the George_Pólya at his 1945 book, "How to Solve it", is that one of the thing to try, when looking for a solution to an unsolved problem, is to look for problems that are similar to the unsolved problem, look for an analogies, and then try to fit the solutions of the analogous solved problems to fit the problem that is to be solved. Mass murders, extermination camps, are very similar to slaughterhouses. 

The Problem to Solve

Data for Analysis