Fellows, I've been trying to find a good way to explain Bitcoin's functioning logic to people that are not familiarized with this technology, and I'd like to hear from you guys: if you had the task of explaining BTC to someone, what concepts would you highlight the most?

One thing that makes it interesting to be accepted is about the price of bitcoin, a concept that is able to make a big concern for the laity. I think by explaining the usefulness and value of bitcoin it will be one thing that will be of interest to many people.