I think Blockchain will bring major changes and will reduce the role of government. This will enhance individual privacy and shift power from corporate houses to individuals. Bitcoin is not evil but user can be, same as any other legal tender can be used for evil objectives.
Bitcoin is very exciting development which can be world currency. Bitcoin is the beginning of something great which will change the world. Bitcoin gives us an opportunity to transfer a unique piece of digital asset to another with safety and security. The transfer is open so nobody can challenge the legitimacy of the transfer. With some improvisation, this can be fast, secure and more efficient payment system.
I see block-chain technology as next big thing and you will see different flavors of decentralized technologies. In future all smart devices will speak to each other better and faster.
One thing for sure, governments are not liking it, it augurs significant political, cultural and economic clashes. But Bitcoin is unstoppable.
Bitcoin is a good way of keeping everyone honest and removing whole layer of banking bureaucracy and lowering cost. This is purest form of democracy and currency of resistance.
Happy Steeming !!