What does Zimbardo's prison experiment demonstrate? It's possible for people to act horribly in evil situations. Most people have cruel intentions toward other individuals. People are willing to be obedient to false authority. Truly normal people won't act horribly if placed in evil situations.

I just covered this in my psychology class! It demonstrates how our environment can't effect our behaviors. Being locked down and treated like animals can cause a lot of mental damage to a normal person. Ultimately this experiment how being in a bad environment cause cause someone to have a mental break down and act out in way they normally wouldn't.