>Now what will blockchains change? Blockchain applications can differ from Bitcoin. I think you are aiming your comment more at Bitcoin--or rather not even tha

>Now what will blockchains change? Blockchain applications can differ from Bitcoin. I think you are aiming your comment more at Bitcoin--or rather not even that but decentralized currencies in general. In that case, a possible change hoped for by many is the removal of central places of trust that can fail. For example, Satoshi Nakamoto used the text, "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks" for the Genesis Block—it was because of a concern for placing trust in something central like the banks.