Haha
It seems to work, kinda. I do think it is possible to rehabilitate to some extent in norwegian prisons. One reason why we can do it is because we don't have that much vicious crime like murder in this country. If we had a lot of it, the government would be sending a lot of murderers back out on the streets and that wouldn't be popular, even here.
Norwegian prisons and punishment is a bit lax at times, though. Sometimes, people are let off too easily and commit crimes again shortly after. There's even been some cases where people deliberately went and did a crime just so they could get into jail.
How to deal with criminals is one of the toughest nuts to crack in any society though. There are trade-offs for every solution.