Mr. Lopez, Dr. Stephen Davis, Dr. Mariel Jessup "What evidence would you need to see to change your mind about how to solve the stroke problem?"

Stroke survivors are not getting anywhere with help for us, so we need to change the conversation from F.A.S.T. and prevention to something more useful.
A great description from Seth Godin;

Seth's Blog : How to win an argument with a scientist

The person you're arguing with now (who might be a scientist during the day, even, but is merely being a person right now) is not going to be swayed from a firmly held opinion by your work to make better science. It's more likely that it will take cultural pressure, shame, passion, humor, connection and a host of unreliable levers to make your point.