Have you read headlines like these recently? ‘Five Ways Blockchain Could Change The World.’ ‘How Blockchain Will Change the Way We Work, Play and Stay Healthy in the Future.’ And of course: how to onboard 'the next billion users.’ Whether so much optimism is really justified largely depends on who you’re asking. Anything related to blockchains and cryptocurrencies often inspires either unconditional love or deep-seated mistrust. Optimists seem to believe that widespread adoption will sol...