Currently in the legal system there’s this myth of equality. And the assumption is if you are over 18 and you have an IQ of over 70 then all brains are created equal. And, of course, that’s a very charitable idea but it’s demonstrably false. Brains are extraordinarily different from one another. Brains are essentially like fingerprints; we’ve all got them but they’re somewhat different. And so by imagining that everyone has the exact same capacity for decision-making, for understanding future consequences, for squelching their impulsive behavior and so on, what we’re doing is we’re imagining that everybody should be treated the same. And, of course, what has happened is that our prison system has become our de facto mental health care system. Estimates are that about 30 percent of the prison population has some sort of mental illness.