I regularly explain Bitcoin enthusiastically to newbs. I tend to focus on these:
- Cash for the internet
- Financial freedom as central authorities cannot stop payments or freeze your accounts
- Banks and governments cannot devalue or inflate Bitcoin
- 3-4 years of solid growth in utility, adoption, and price show Bitcoin to be both a good (yet risky) investment and store of value
great concise information for newbs to Bitcoins.
I agree with your defininitions and descriptions