We have given teens more money, so they can construct their own social and material worlds more easily. We have given them more time to spend among t… - Malcolm Gladwell

There is a concept in cognitive psychology called the channel capacity, which refers to the amount of space in our brain for certain kinds of information.

In Boston right around the same time, another criminologist did a similar study: Half the crime in the city came from 3.6 percent of the city’s blocks. That made two examples. Weisburd decided to look wherever he could: New York. Seattle. Cincinnati. Sherman looked in Kansas City, Dallas. Anytime someone asked, the two of them would run the numbers. And every place they looked, they saw the same thing: Crime in every city was concentrated in a tiny number of street segments. Weisburd decided to try a foreign city, somewhere entirely different — culturally, geographically, economically. His family was Israeli, so he thought Tel Aviv. Same thing. “I said, ‘Oh my God. Look at that! Why should it be that five percent of the streets in Tel Aviv produce fifty percent of the crime? There’s this thing going on, in places that are so different.’” Weisburd refers to this as the Law of Crime Concentration.6 Like suicide, crime is tied to very specific places and contexts. Weisburd’s experiences in the 72nd Precinct and in Minneapolis are not idiosyncratic. They capture something close to a fundamental truth about human behavior. And that means that when you confront the stranger, you have to ask yourself where and when you’re confronting the stranger — because those two things powerfully influence your interpretation of who the stranger is.

This is called the “principle of legitimacy,” and legitimacy is based on three things. First of all, the people who are asked to obey authority have to feel like they have a voice — that if they speak up, they will be heard. Second, the law has to be predictable. There has to be a reasonable expectation that the rules tomorrow are going to be roughly the same as the rules today. And third, the authority has to be fair. It can’t treat one group differently from another.