Thanks very much to both of you for your thoughtful presentations.
Dr. Humphreys, I want to briefly go back to you.
You have written a lot about prevention. You haven't focused on it in this talk, but I think you talk about prevention with some sense of urgency, including that you can't solve epidemics by concentrating on people at the extreme end.
Knowing there's a strong relationship between adverse childhood experiences or childhood trauma and addiction later in life, can you very briefly comment on the importance of upstream investments with that same sense of urgency we're thinking about at the other extreme?