Ruthless Elimination
    When it comes to changing behavior . .  we have to be ruthless about the things that we focus on .       We actually have some good data on this .       There was a study of a parole board judges . .  few 100 of them . .  about 1000 cases that they looked at in this particular research study . .       the parole board judges would have criminals come out . .  they would sit before the parole board . .  they would vote on whether or not they would be released from prison . .  or to have to go back in .       what you would hope . .  is that in order to get released from prison . .  it should be based on the time they serve . .  the type of crime . .  good behavior . .  all sorts of things built into the criminal justice system .       In fact . .  what they found the single biggest factor on . .  whether or not someone was released on parole or whether they had to go back into prison was . .  the time of day that they were seen .       this is a map of t...