When you deal with a person who's experiencing dementia you can see where they're struggling with knowledge. You can see what they forget completely what they forget but they know what they once knew. You can tell how they're trying to remember.

As the National Football League and other pro sports increasingly reckon with the early dementia mental health issues suicides and even criminal behavior of former players the risk of what's known as chronic traumatic encephalopathy (CTE) is becoming clear.

The baby boomers are getting older and will stay older for longer. And they will run right into the dementia firing range. How will a society cope? Especially a society that can't so readily rely on those stable family relationships that traditionally provided the backbone of care?