Hey, thanks for the positive remarks everyone.  It' was a lot of fun to do.  I also appreciate the comments made by gweedo, I wish I would have been slower to think through some of the answers I made.  Accuracy when talking about bitcoin is paramount.  I made another error when talking about the money supply where I understated how much M3 was in existence in the 1960's.   It was the Valentine's day program for the Rotary Club, so everyone had their spouses there too.  I'd say over 200 people were present.  My main goal was to have the audience feel the force of how Bitcoin allows us to opt out of a quickly deteriorating monetary environment and show its feasibility as a currency.