There are a lot of inspirational talks, especially in Ted. The very first talk that I've watched there, that is something related to Bitcoin is titled "How the blockchain will radically transform the economy" and it is here in this link.
http://www.ted.com/talks/bettina_warburg_how_the_blockchain_will_radically_transform_the_economyShe talked about how it could change the economy, the anonymity, the blocks that form the blockchain, on how it could improve our current economy today. She focused on the decentralized power of it and how it could change how banks or governments work through this technology.