If you had 20 minutes to present bitcoin to a room full of professional businesspersons, what would your MAIN POINT be?  In otherwords, what would unify your entire talk?

I am a member of the Las Vegas Rotary Club, and next thursday I am slated to give the program.  It usually runs 20-25 minutes. 

The audience is probably 60% male, 40% female, with an average age of 50 I would say.  Many are small business owners, others are lawyers.  Most have smartphones.  If I say "torrent" or "cryptography" or "peer to peer" I can guarantee they will not be coming to terms with what I'm saying.  I will have access to A/V etc..

So, I need your advice on what the main point should be to the presentation, and what sub points you think would be effective.  Catch me on here or on #bitcoin-otc.

Mark