Best answer (could be the most upvoted, but still ultimately my discretion) gets 10 mBTC (.01 BTC). Time frame is 24 hours from the time of this posting.

Let's hear those elevator pitches!

One of my go-to answers would be:

Remember when we used to have cross-border mail and international phone calls? We had to go through middlemen like long distance phone operators and post offices, and pay extra to do so, right? The internet changed all that. Now, we still have cross-border payments and money transfers, right? Going through middlemen like banks and Western Union, paying extra to so? Bitcoin changes all that in the same exact way. Check out Bitcoin.org if you want to learn more.

Done!