The Number Zero and Bitcoin series by Robert Breedlove is good. Zero is an idea, like Bitcoin, which cannot be stopped because the idea is so useful to the the individuals who adopt it. https://www.youtube.com/watch?v=jXnAbU1BTn8&list=PL2jAZ0x9H0bRgXYVxcTjfmVrCO1aulFvD&index=2