> This is a stale and old debate, personality is extremely flexible and heavily depends on environmental and social constraints, as were demonstrated by seminal social experiment studies such as those of Milgram or Zimbardo.

These experiments first of all show how people react in highly stressful situations. To equalize this with changes in their personalities doesn't seem right to me.

The hardest part of these artificial and mostly extreme experiments - because you want to see reactions in a short amount of time - is what kind of conclusions you can take out of them.