By the time the child reaches her early teens, she has half as many synaptic connections as she did when she was 3. Her brain has carved out a unique network of connections. She has some beautiful, frictionless, traffic-free four-lane highways where the connections are smooth and strong. And she has some barren wastelands where no signal at all makes it across. If she ends up with a four-lane highway for empathy, she will feel every emotion of those around her as though it were her own. By contrast, if she has a wasteland for empathy, she will be emotionally blind, forever saying the wrong
...more