Too Long; Didn't Read
If you have some anti-crypto friends, they may shut you down every time you try to talk about the merits of this new type of currency. So how can you convince them to come around? The best way to persuade someone is not to directly confront or persuade them; instead, it's to help them discover a new opinion from the ground up. You're not trying to change your friend's mind directly, you're trying to give them the information they can use to come to a new set of conclusions.